1640677920

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{6689}}^1$

素因数の和:6787

約数の個数: 192

約数和(自身を含む): 5988245760

約数和(自身を除く): 4347567840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 70, 73, 80, 84, 96, 105, 112, 120, 140, 146, 160, 168, 210, 219, 224, 240, 280, 292, 336, 365, 420, 438, 480, 511, 560, 584, 672, 730, 840, 876, 1022, 1095, 1120, 1168, 1460, 1533, 1680, 1752, 2044, 2190, 2336, 2555, 2920, 3066, 3360, 3504, 4088, 4380, 5110, 5840, 6132, 6689, 7008, 7665, 8176, 8760, 10220, 11680, 12264, 13378, 15330, 16352, 17520, 20067, 20440, 24528, 26756, 30660, 33445, 35040, 40134, 40880, 46823, 49056, 53512, 61320, 66890, 80268, 81760, 93646, 100335, 107024, 122640, 133780, 140469, 160536, 187292, 200670, 214048, 234115, 245280, 267560, 280938, 321072, 374584, 401340, 468230, 488297, 535120, 561876, 642144, 702345, 749168, 802680, 936460, 976594, 1070240, 1123752, 1404690, 1464891, 1498336, 1605360, 1872920, 1953188, 2247504, 2441485, 2809380, 2929782, 3210720, 3418079, 3745840, 3906376, 4495008, 4882970, 5618760, 5859564, 6836158, 7324455, 7491680, 7812752, 9765940, 10254237, 11237520, 11719128, 13672316, 14648910, 15625504, 17090395, 19531880, 20508474, 22475040, 23438256, 27344632, 29297820, 34180790, 39063760, 41016948, 46876512, 51271185, 54689264, 58595640, 68361580, 78127520, 82033896, 102542370, 109378528, 117191280, 136723160, 164067792, 205084740, 234382560, 273446320, 328135584, 410169480, 546892640, 820338960, 1640677920]

約数ペア:

[(1, 1640677920), (2, 820338960), (3, 546892640), (4, 410169480), (5, 328135584), (6, 273446320), (7, 234382560), (8, 205084740), (10, 164067792), (12, 136723160), (14, 117191280), (15, 109378528), (16, 102542370), (20, 82033896), (21, 78127520), (24, 68361580), (28, 58595640), (30, 54689264), (32, 51271185), (35, 46876512), (40, 41016948), (42, 39063760), (48, 34180790), (56, 29297820), (60, 27344632), (70, 23438256), (73, 22475040), (80, 20508474), (84, 19531880), (96, 17090395), (105, 15625504), (112, 14648910), (120, 13672316), (140, 11719128), (146, 11237520), (160, 10254237), (168, 9765940), (210, 7812752), (219, 7491680), (224, 7324455), (240, 6836158), (280, 5859564), (292, 5618760), (336, 4882970), (365, 4495008), (420, 3906376), (438, 3745840), (480, 3418079), (511, 3210720), (560, 2929782), (584, 2809380), (672, 2441485), (730, 2247504), (840, 1953188), (876, 1872920), (1022, 1605360), (1095, 1498336), (1120, 1464891), (1168, 1404690), (1460, 1123752), (1533, 1070240), (1680, 976594), (1752, 936460), (2044, 802680), (2190, 749168), (2336, 702345), (2555, 642144), (2920, 561876), (3066, 535120), (3360, 488297), (3504, 468230), (4088, 401340), (4380, 374584), (5110, 321072), (5840, 280938), (6132, 267560), (6689, 245280), (7008, 234115), (7665, 214048), (8176, 200670), (8760, 187292), (10220, 160536), (11680, 140469), (12264, 133780), (13378, 122640), (15330, 107024), (16352, 100335), (17520, 93646), (20067, 81760), (20440, 80268), (24528, 66890), (26756, 61320), (30660, 53512), (33445, 49056), (35040, 46823), (40134, 40880)]