20821617118960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{311}}^1\times {\mathrm{2753}}^1\times {\mathrm{43427}}^1$

素因数の和:46511

約数の個数: 160

約数和(自身を含む): 55525348150272

約数和(自身を除く): 34703731031312

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 311, 560, 622, 1244, 1555, 2177, 2488, 2753, 3110, 4354, 4976, 5506, 6220, 8708, 10885, 11012, 12440, 13765, 17416, 19271, 21770, 22024, 24880, 27530, 34832, 38542, 43427, 43540, 44048, 55060, 77084, 86854, 87080, 96355, 110120, 154168, 173708, 174160, 192710, 217135, 220240, 303989, 308336, 347416, 385420, 434270, 607978, 694832, 770840, 856183, 868540, 1215956, 1519945, 1541680, 1712366, 1737080, 2431912, 3039890, 3424732, 3474160, 4280915, 4863824, 5993281, 6079780, 6849464, 8561830, 11986562, 12159560, 13505797, 13698928, 17123660, 23973124, 24319120, 27011594, 29966405, 34247320, 47946248, 54023188, 59932810, 67528985, 68494640, 94540579, 95892496, 108046376, 119554531, 119865620, 135057970, 189081158, 216092752, 239109062, 239731240, 270115940, 378162316, 472702895, 478218124, 479462480, 540231880, 597772655, 756324632, 836881717, 945405790, 956436248, 1080463760, 1195545310, 1512649264, 1673763434, 1890811580, 1912872496, 2391090620, 3347526868, 3781623160, 4184408585, 4782181240, 6695053736, 7563246320, 8368817170, 9564362480, 13390107472, 16737634340, 33475268680, 37181459141, 66950537360, 74362918282, 148725836564, 185907295705, 260270213987, 297451673128, 371814591410, 520540427974, 594903346256, 743629182820, 1041080855948, 1301351069935, 1487258365640, 2082161711896, 2602702139870, 2974516731280, 4164323423792, 5205404279740, 10410808559480, 20821617118960]

約数ペア:

[(1, 20821617118960), (2, 10410808559480), (4, 5205404279740), (5, 4164323423792), (7, 2974516731280), (8, 2602702139870), (10, 2082161711896), (14, 1487258365640), (16, 1301351069935), (20, 1041080855948), (28, 743629182820), (35, 594903346256), (40, 520540427974), (56, 371814591410), (70, 297451673128), (80, 260270213987), (112, 185907295705), (140, 148725836564), (280, 74362918282), (311, 66950537360), (560, 37181459141), (622, 33475268680), (1244, 16737634340), (1555, 13390107472), (2177, 9564362480), (2488, 8368817170), (2753, 7563246320), (3110, 6695053736), (4354, 4782181240), (4976, 4184408585), (5506, 3781623160), (6220, 3347526868), (8708, 2391090620), (10885, 1912872496), (11012, 1890811580), (12440, 1673763434), (13765, 1512649264), (17416, 1195545310), (19271, 1080463760), (21770, 956436248), (22024, 945405790), (24880, 836881717), (27530, 756324632), (34832, 597772655), (38542, 540231880), (43427, 479462480), (43540, 478218124), (44048, 472702895), (55060, 378162316), (77084, 270115940), (86854, 239731240), (87080, 239109062), (96355, 216092752), (110120, 189081158), (154168, 135057970), (173708, 119865620), (174160, 119554531), (192710, 108046376), (217135, 95892496), (220240, 94540579), (303989, 68494640), (308336, 67528985), (347416, 59932810), (385420, 54023188), (434270, 47946248), (607978, 34247320), (694832, 29966405), (770840, 27011594), (856183, 24319120), (868540, 23973124), (1215956, 17123660), (1519945, 13698928), (1541680, 13505797), (1712366, 12159560), (1737080, 11986562), (2431912, 8561830), (3039890, 6849464), (3424732, 6079780), (3474160, 5993281), (4280915, 4863824)]