780328900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:159

約数の個数: 216

約数和(自身を含む): 2029481216

約数和(自身を除く): 1249152316

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 25, 26, 31, 34, 50, 52, 62, 65, 67, 68, 85, 100, 124, 130, 134, 155, 170, 221, 260, 268, 289, 310, 325, 335, 340, 403, 425, 442, 527, 578, 620, 650, 670, 775, 806, 850, 871, 884, 1054, 1105, 1139, 1156, 1300, 1340, 1445, 1550, 1612, 1675, 1700, 1742, 2015, 2077, 2108, 2210, 2278, 2635, 2890, 3100, 3350, 3484, 3757, 4030, 4154, 4355, 4420, 4556, 5270, 5525, 5695, 5780, 6700, 6851, 7225, 7514, 8060, 8308, 8710, 8959, 10075, 10385, 10540, 11050, 11390, 13175, 13702, 14450, 14807, 15028, 17420, 17918, 18785, 19363, 20150, 20770, 21775, 22100, 22780, 26350, 27001, 27404, 28475, 28900, 29614, 34255, 35309, 35836, 37570, 38726, 40300, 41540, 43550, 44795, 51925, 52700, 54002, 56950, 59228, 68510, 70618, 74035, 75140, 77452, 87100, 89590, 93925, 96815, 103850, 108004, 113900, 116467, 135005, 137020, 141236, 148070, 171275, 176545, 179180, 187850, 193630, 207700, 223975, 232934, 251719, 270010, 296140, 342550, 353090, 370175, 375700, 387260, 447950, 459017, 465868, 484075, 503438, 540020, 582335, 600253, 675025, 685100, 706180, 740350, 882725, 895900, 918034, 968150, 1006876, 1164670, 1200506, 1258595, 1350050, 1480700, 1765450, 1836068, 1936300, 2295085, 2329340, 2401012, 2517190, 2700100, 2911675, 3001265, 3530900, 4590170, 5034380, 5823350, 6002530, 6292975, 7803289, 9180340, 11475425, 11646700, 12005060, 12585950, 15006325, 15606578, 22950850, 25171900, 30012650, 31213156, 39016445, 45901700, 60025300, 78032890, 156065780, 195082225, 390164450, 780328900]

約数ペア:

[(1, 780328900), (2, 390164450), (4, 195082225), (5, 156065780), (10, 78032890), (13, 60025300), (17, 45901700), (20, 39016445), (25, 31213156), (26, 30012650), (31, 25171900), (34, 22950850), (50, 15606578), (52, 15006325), (62, 12585950), (65, 12005060), (67, 11646700), (68, 11475425), (85, 9180340), (100, 7803289), (124, 6292975), (130, 6002530), (134, 5823350), (155, 5034380), (170, 4590170), (221, 3530900), (260, 3001265), (268, 2911675), (289, 2700100), (310, 2517190), (325, 2401012), (335, 2329340), (340, 2295085), (403, 1936300), (425, 1836068), (442, 1765450), (527, 1480700), (578, 1350050), (620, 1258595), (650, 1200506), (670, 1164670), (775, 1006876), (806, 968150), (850, 918034), (871, 895900), (884, 882725), (1054, 740350), (1105, 706180), (1139, 685100), (1156, 675025), (1300, 600253), (1340, 582335), (1445, 540020), (1550, 503438), (1612, 484075), (1675, 465868), (1700, 459017), (1742, 447950), (2015, 387260), (2077, 375700), (2108, 370175), (2210, 353090), (2278, 342550), (2635, 296140), (2890, 270010), (3100, 251719), (3350, 232934), (3484, 223975), (3757, 207700), (4030, 193630), (4154, 187850), (4355, 179180), (4420, 176545), (4556, 171275), (5270, 148070), (5525, 141236), (5695, 137020), (5780, 135005), (6700, 116467), (6851, 113900), (7225, 108004), (7514, 103850), (8060, 96815), (8308, 93925), (8710, 89590), (8959, 87100), (10075, 77452), (10385, 75140), (10540, 74035), (11050, 70618), (11390, 68510), (13175, 59228), (13702, 56950), (14450, 54002), (14807, 52700), (15028, 51925), (17420, 44795), (17918, 43550), (18785, 41540), (19363, 40300), (20150, 38726), (20770, 37570), (21775, 35836), (22100, 35309), (22780, 34255), (26350, 29614), (27001, 28900), (27404, 28475)]