20187987960

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{1021}}^1\times {\mathrm{23539}}^1$

素因数の和:24581

約数の個数: 128

約数和(自身を含む): 69286694400

約数和(自身を除く): 49098706440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 1021, 2042, 3063, 4084, 5105, 6126, 7147, 8168, 10210, 12252, 14294, 15315, 20420, 21441, 23539, 24504, 28588, 30630, 35735, 40840, 42882, 47078, 57176, 61260, 70617, 71470, 85764, 94156, 107205, 117695, 122520, 141234, 142940, 164773, 171528, 188312, 214410, 235390, 282468, 285880, 329546, 353085, 428820, 470780, 494319, 564936, 659092, 706170, 823865, 857640, 941560, 988638, 1318184, 1412340, 1647730, 1977276, 2471595, 2824680, 3295460, 3954552, 4943190, 6590920, 9886380, 19772760, 24033319, 48066638, 72099957, 96133276, 120166595, 144199914, 168233233, 192266552, 240333190, 288399828, 336466466, 360499785, 480666380, 504699699, 576799656, 672932932, 720999570, 841166165, 961332760, 1009399398, 1345865864, 1441999140, 1682332330, 2018798796, 2523498495, 2883998280, 3364664660, 4037597592, 5046996990, 6729329320, 10093993980, 20187987960]

約数ペア:

[(1, 20187987960), (2, 10093993980), (3, 6729329320), (4, 5046996990), (5, 4037597592), (6, 3364664660), (7, 2883998280), (8, 2523498495), (10, 2018798796), (12, 1682332330), (14, 1441999140), (15, 1345865864), (20, 1009399398), (21, 961332760), (24, 841166165), (28, 720999570), (30, 672932932), (35, 576799656), (40, 504699699), (42, 480666380), (56, 360499785), (60, 336466466), (70, 288399828), (84, 240333190), (105, 192266552), (120, 168233233), (140, 144199914), (168, 120166595), (210, 96133276), (280, 72099957), (420, 48066638), (840, 24033319), (1021, 19772760), (2042, 9886380), (3063, 6590920), (4084, 4943190), (5105, 3954552), (6126, 3295460), (7147, 2824680), (8168, 2471595), (10210, 1977276), (12252, 1647730), (14294, 1412340), (15315, 1318184), (20420, 988638), (21441, 941560), (23539, 857640), (24504, 823865), (28588, 706170), (30630, 659092), (35735, 564936), (40840, 494319), (42882, 470780), (47078, 428820), (57176, 353085), (61260, 329546), (70617, 285880), (71470, 282468), (85764, 235390), (94156, 214410), (107205, 188312), (117695, 171528), (122520, 164773), (141234, 142940)]