20198492860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{491}}^1\times {\mathrm{3229}}^1$

素因数の和:3756

約数の個数: 144

約数和(自身を含む): 53262286560

約数和(自身を除く): 33063793700

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 364, 455, 490, 491, 637, 910, 980, 982, 1274, 1820, 1964, 2455, 2548, 3185, 3229, 3437, 4910, 6370, 6383, 6458, 6874, 9820, 12740, 12766, 12916, 13748, 16145, 17185, 22603, 24059, 25532, 31915, 32290, 34370, 41977, 44681, 45206, 48118, 63830, 64580, 68740, 83954, 89362, 90412, 96236, 113015, 120295, 127660, 158221, 167908, 178724, 209885, 223405, 226030, 240590, 293839, 312767, 316442, 419770, 446810, 452060, 481180, 587678, 625534, 632884, 791105, 839540, 893620, 1175356, 1251068, 1469195, 1563835, 1582210, 1585439, 2056873, 2938390, 3127670, 3164420, 3170878, 4113746, 5876780, 6255340, 6341756, 7927195, 8227492, 10284365, 11098073, 15854390, 20568730, 20610707, 22196146, 31708780, 41137460, 41221414, 44392292, 55490365, 77686511, 82442828, 103053535, 110980730, 144274949, 155373022, 206107070, 221961460, 288549898, 310746044, 388432555, 412214140, 577099796, 721374745, 776865110, 1009924643, 1442749490, 1553730220, 2019849286, 2885498980, 4039698572, 5049623215, 10099246430, 20198492860]

約数ペア:

[(1, 20198492860), (2, 10099246430), (4, 5049623215), (5, 4039698572), (7, 2885498980), (10, 2019849286), (13, 1553730220), (14, 1442749490), (20, 1009924643), (26, 776865110), (28, 721374745), (35, 577099796), (49, 412214140), (52, 388432555), (65, 310746044), (70, 288549898), (91, 221961460), (98, 206107070), (130, 155373022), (140, 144274949), (182, 110980730), (196, 103053535), (245, 82442828), (260, 77686511), (364, 55490365), (455, 44392292), (490, 41221414), (491, 41137460), (637, 31708780), (910, 22196146), (980, 20610707), (982, 20568730), (1274, 15854390), (1820, 11098073), (1964, 10284365), (2455, 8227492), (2548, 7927195), (3185, 6341756), (3229, 6255340), (3437, 5876780), (4910, 4113746), (6370, 3170878), (6383, 3164420), (6458, 3127670), (6874, 2938390), (9820, 2056873), (12740, 1585439), (12766, 1582210), (12916, 1563835), (13748, 1469195), (16145, 1251068), (17185, 1175356), (22603, 893620), (24059, 839540), (25532, 791105), (31915, 632884), (32290, 625534), (34370, 587678), (41977, 481180), (44681, 452060), (45206, 446810), (48118, 419770), (63830, 316442), (64580, 312767), (68740, 293839), (83954, 240590), (89362, 226030), (90412, 223405), (96236, 209885), (113015, 178724), (120295, 167908), (127660, 158221)]