128661780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{313}}^1$

素因数の和:386

約数の個数: 192

約数和(自身を含む): 425392128

約数和(自身を除く): 296730348

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 17, 20, 26, 30, 31, 34, 39, 51, 52, 60, 62, 65, 68, 78, 85, 93, 102, 124, 130, 155, 156, 170, 186, 195, 204, 221, 255, 260, 310, 313, 340, 372, 390, 403, 442, 465, 510, 527, 620, 626, 663, 780, 806, 884, 930, 939, 1020, 1054, 1105, 1209, 1252, 1326, 1565, 1581, 1612, 1860, 1878, 2015, 2108, 2210, 2418, 2635, 2652, 3130, 3162, 3315, 3756, 4030, 4069, 4420, 4695, 4836, 5270, 5321, 6045, 6260, 6324, 6630, 6851, 7905, 8060, 8138, 9390, 9703, 10540, 10642, 12090, 12207, 13260, 13702, 15810, 15963, 16276, 18780, 19406, 20345, 20553, 21284, 24180, 24414, 26605, 27404, 29109, 31620, 31926, 34255, 38812, 40690, 41106, 48515, 48828, 53210, 58218, 61035, 63852, 68510, 69173, 79815, 81380, 82212, 97030, 102765, 106420, 116436, 122070, 126139, 137020, 138346, 145545, 159630, 164951, 194060, 205530, 207519, 244140, 252278, 276692, 291090, 319260, 329902, 345865, 378417, 411060, 415038, 494853, 504556, 582180, 630695, 659804, 691730, 756834, 824755, 830076, 989706, 1037595, 1261390, 1383460, 1513668, 1649510, 1892085, 1979412, 2075190, 2144363, 2474265, 2522780, 3299020, 3784170, 4150380, 4288726, 4948530, 6433089, 7568340, 8577452, 9897060, 10721815, 12866178, 21443630, 25732356, 32165445, 42887260, 64330890, 128661780]

約数ペア:

[(1, 128661780), (2, 64330890), (3, 42887260), (4, 32165445), (5, 25732356), (6, 21443630), (10, 12866178), (12, 10721815), (13, 9897060), (15, 8577452), (17, 7568340), (20, 6433089), (26, 4948530), (30, 4288726), (31, 4150380), (34, 3784170), (39, 3299020), (51, 2522780), (52, 2474265), (60, 2144363), (62, 2075190), (65, 1979412), (68, 1892085), (78, 1649510), (85, 1513668), (93, 1383460), (102, 1261390), (124, 1037595), (130, 989706), (155, 830076), (156, 824755), (170, 756834), (186, 691730), (195, 659804), (204, 630695), (221, 582180), (255, 504556), (260, 494853), (310, 415038), (313, 411060), (340, 378417), (372, 345865), (390, 329902), (403, 319260), (442, 291090), (465, 276692), (510, 252278), (527, 244140), (620, 207519), (626, 205530), (663, 194060), (780, 164951), (806, 159630), (884, 145545), (930, 138346), (939, 137020), (1020, 126139), (1054, 122070), (1105, 116436), (1209, 106420), (1252, 102765), (1326, 97030), (1565, 82212), (1581, 81380), (1612, 79815), (1860, 69173), (1878, 68510), (2015, 63852), (2108, 61035), (2210, 58218), (2418, 53210), (2635, 48828), (2652, 48515), (3130, 41106), (3162, 40690), (3315, 38812), (3756, 34255), (4030, 31926), (4069, 31620), (4420, 29109), (4695, 27404), (4836, 26605), (5270, 24414), (5321, 24180), (6045, 21284), (6260, 20553), (6324, 20345), (6630, 19406), (6851, 18780), (7905, 16276), (8060, 15963), (8138, 15810), (9390, 13702), (9703, 13260), (10540, 12207), (10642, 12090)]