21101472580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{233}}^1\times {\mathrm{3907}}^1$

素因数の和:4229

約数の個数: 96

約数和(自身を含む): 47625701760

約数和(自身を除く): 26524229180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 61, 76, 95, 122, 190, 233, 244, 305, 380, 466, 610, 932, 1159, 1165, 1220, 2318, 2330, 3907, 4427, 4636, 4660, 5795, 7814, 8854, 11590, 14213, 15628, 17708, 19535, 22135, 23180, 28426, 39070, 44270, 56852, 71065, 74233, 78140, 88540, 142130, 148466, 238327, 270047, 284260, 296932, 371165, 476654, 540094, 742330, 910331, 953308, 1080188, 1191635, 1350235, 1484660, 1820662, 2383270, 2700470, 3641324, 4528213, 4551655, 4766540, 5400940, 9056426, 9103310, 17296289, 18112852, 18206620, 22641065, 34592578, 45282130, 55530191, 69185156, 86481445, 90564260, 111060382, 172962890, 222120764, 277650955, 345925780, 555301910, 1055073629, 1110603820, 2110147258, 4220294516, 5275368145, 10550736290, 21101472580]

約数ペア:

[(1, 21101472580), (2, 10550736290), (4, 5275368145), (5, 4220294516), (10, 2110147258), (19, 1110603820), (20, 1055073629), (38, 555301910), (61, 345925780), (76, 277650955), (95, 222120764), (122, 172962890), (190, 111060382), (233, 90564260), (244, 86481445), (305, 69185156), (380, 55530191), (466, 45282130), (610, 34592578), (932, 22641065), (1159, 18206620), (1165, 18112852), (1220, 17296289), (2318, 9103310), (2330, 9056426), (3907, 5400940), (4427, 4766540), (4636, 4551655), (4660, 4528213), (5795, 3641324), (7814, 2700470), (8854, 2383270), (11590, 1820662), (14213, 1484660), (15628, 1350235), (17708, 1191635), (19535, 1080188), (22135, 953308), (23180, 910331), (28426, 742330), (39070, 540094), (44270, 476654), (56852, 371165), (71065, 296932), (74233, 284260), (78140, 270047), (88540, 238327), (142130, 148466)]