28361520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{3581}}^1$

素因数の和:3611

約数の個数: 120

約数和(自身を含む): 103935312

約数和(自身を除く): 75573792

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 99, 110, 120, 132, 144, 165, 176, 180, 198, 220, 240, 264, 330, 360, 396, 440, 495, 528, 660, 720, 792, 880, 990, 1320, 1584, 1980, 2640, 3581, 3960, 7162, 7920, 10743, 14324, 17905, 21486, 28648, 32229, 35810, 39391, 42972, 53715, 57296, 64458, 71620, 78782, 85944, 107430, 118173, 128916, 143240, 157564, 161145, 171888, 196955, 214860, 236346, 257832, 286480, 315128, 322290, 354519, 393910, 429720, 472692, 515664, 590865, 630256, 644580, 709038, 787820, 859440, 945384, 1181730, 1289160, 1418076, 1575640, 1772595, 1890768, 2363460, 2578320, 2836152, 3151280, 3545190, 4726920, 5672304, 7090380, 9453840, 14180760, 28361520]

約数ペア:

[(1, 28361520), (2, 14180760), (3, 9453840), (4, 7090380), (5, 5672304), (6, 4726920), (8, 3545190), (9, 3151280), (10, 2836152), (11, 2578320), (12, 2363460), (15, 1890768), (16, 1772595), (18, 1575640), (20, 1418076), (22, 1289160), (24, 1181730), (30, 945384), (33, 859440), (36, 787820), (40, 709038), (44, 644580), (45, 630256), (48, 590865), (55, 515664), (60, 472692), (66, 429720), (72, 393910), (80, 354519), (88, 322290), (90, 315128), (99, 286480), (110, 257832), (120, 236346), (132, 214860), (144, 196955), (165, 171888), (176, 161145), (180, 157564), (198, 143240), (220, 128916), (240, 118173), (264, 107430), (330, 85944), (360, 78782), (396, 71620), (440, 64458), (495, 57296), (528, 53715), (660, 42972), (720, 39391), (792, 35810), (880, 32229), (990, 28648), (1320, 21486), (1584, 17905), (1980, 14324), (2640, 10743), (3581, 7920), (3960, 7162)]