20964060

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1$

素因数の和:93

約数の個数: 216

約数和(自身を含む): 75094656

約数和(自身を除く): 54130596

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 17, 18, 20, 26, 30, 31, 34, 36, 39, 45, 51, 52, 60, 62, 65, 68, 78, 85, 90, 93, 102, 117, 124, 130, 153, 155, 156, 170, 180, 186, 195, 204, 221, 234, 255, 260, 279, 289, 306, 310, 340, 372, 390, 403, 442, 465, 468, 510, 527, 558, 578, 585, 612, 620, 663, 765, 780, 806, 867, 884, 930, 1020, 1054, 1105, 1116, 1156, 1170, 1209, 1326, 1395, 1445, 1530, 1581, 1612, 1734, 1860, 1989, 2015, 2108, 2210, 2340, 2418, 2601, 2635, 2652, 2790, 2890, 3060, 3162, 3315, 3468, 3627, 3757, 3978, 4030, 4335, 4420, 4743, 4836, 5202, 5270, 5580, 5780, 6045, 6324, 6630, 6851, 7254, 7514, 7905, 7956, 8060, 8670, 8959, 9486, 9945, 10404, 10540, 11271, 12090, 13005, 13260, 13702, 14508, 15028, 15810, 17340, 17918, 18135, 18785, 18972, 19890, 20553, 22542, 23715, 24180, 26010, 26877, 27404, 31620, 33813, 34255, 35836, 36270, 37570, 39780, 41106, 44795, 45084, 47430, 52020, 53754, 56355, 61659, 67626, 68510, 72540, 75140, 80631, 82212, 89590, 94860, 102765, 107508, 112710, 116467, 123318, 134385, 135252, 137020, 161262, 169065, 179180, 205530, 225420, 232934, 246636, 268770, 308295, 322524, 338130, 349401, 403155, 411060, 465868, 537540, 582335, 616590, 676260, 698802, 806310, 1048203, 1164670, 1233180, 1397604, 1612620, 1747005, 2096406, 2329340, 3494010, 4192812, 5241015, 6988020, 10482030, 20964060]

約数ペア:

[(1, 20964060), (2, 10482030), (3, 6988020), (4, 5241015), (5, 4192812), (6, 3494010), (9, 2329340), (10, 2096406), (12, 1747005), (13, 1612620), (15, 1397604), (17, 1233180), (18, 1164670), (20, 1048203), (26, 806310), (30, 698802), (31, 676260), (34, 616590), (36, 582335), (39, 537540), (45, 465868), (51, 411060), (52, 403155), (60, 349401), (62, 338130), (65, 322524), (68, 308295), (78, 268770), (85, 246636), (90, 232934), (93, 225420), (102, 205530), (117, 179180), (124, 169065), (130, 161262), (153, 137020), (155, 135252), (156, 134385), (170, 123318), (180, 116467), (186, 112710), (195, 107508), (204, 102765), (221, 94860), (234, 89590), (255, 82212), (260, 80631), (279, 75140), (289, 72540), (306, 68510), (310, 67626), (340, 61659), (372, 56355), (390, 53754), (403, 52020), (442, 47430), (465, 45084), (468, 44795), (510, 41106), (527, 39780), (558, 37570), (578, 36270), (585, 35836), (612, 34255), (620, 33813), (663, 31620), (765, 27404), (780, 26877), (806, 26010), (867, 24180), (884, 23715), (930, 22542), (1020, 20553), (1054, 19890), (1105, 18972), (1116, 18785), (1156, 18135), (1170, 17918), (1209, 17340), (1326, 15810), (1395, 15028), (1445, 14508), (1530, 13702), (1581, 13260), (1612, 13005), (1734, 12090), (1860, 11271), (1989, 10540), (2015, 10404), (2108, 9945), (2210, 9486), (2340, 8959), (2418, 8670), (2601, 8060), (2635, 7956), (2652, 7905), (2790, 7514), (2890, 7254), (3060, 6851), (3162, 6630), (3315, 6324), (3468, 6045), (3627, 5780), (3757, 5580), (3978, 5270), (4030, 5202), (4335, 4836), (4420, 4743)]