20121207460

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{659}}^1\times {\mathrm{863}}^1$

素因数の和:1621

約数の個数: 96

約数和(自身を含む): 44547148800

約数和(自身を除く): 24425941340

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 61, 116, 122, 145, 244, 290, 305, 580, 610, 659, 863, 1220, 1318, 1726, 1769, 2636, 3295, 3452, 3538, 4315, 6590, 7076, 8630, 8845, 13180, 17260, 17690, 19111, 25027, 35380, 38222, 40199, 50054, 52643, 76444, 80398, 95555, 100108, 105286, 125135, 160796, 191110, 200995, 210572, 250270, 263215, 382220, 401990, 500540, 526430, 568717, 803980, 1052860, 1137434, 1165771, 1526647, 2274868, 2331542, 2843585, 3053294, 4663084, 5687170, 5828855, 6106588, 7633235, 11374340, 11657710, 15266470, 16492793, 23315420, 30532940, 32985586, 34691737, 65971172, 69383474, 82463965, 138766948, 164927930, 173458685, 329855860, 346917370, 693834740, 1006060373, 2012120746, 4024241492, 5030301865, 10060603730, 20121207460]

約数ペア:

[(1, 20121207460), (2, 10060603730), (4, 5030301865), (5, 4024241492), (10, 2012120746), (20, 1006060373), (29, 693834740), (58, 346917370), (61, 329855860), (116, 173458685), (122, 164927930), (145, 138766948), (244, 82463965), (290, 69383474), (305, 65971172), (580, 34691737), (610, 32985586), (659, 30532940), (863, 23315420), (1220, 16492793), (1318, 15266470), (1726, 11657710), (1769, 11374340), (2636, 7633235), (3295, 6106588), (3452, 5828855), (3538, 5687170), (4315, 4663084), (6590, 3053294), (7076, 2843585), (8630, 2331542), (8845, 2274868), (13180, 1526647), (17260, 1165771), (17690, 1137434), (19111, 1052860), (25027, 803980), (35380, 568717), (38222, 526430), (40199, 500540), (50054, 401990), (52643, 382220), (76444, 263215), (80398, 250270), (95555, 210572), (100108, 200995), (105286, 191110), (125135, 160796)]