400050040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1$

素因数の和:174

約数の個数: 192

約数和(自身を含む): 1062512640

約数和(自身を除く): 662462600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 26, 31, 40, 46, 52, 62, 65, 83, 92, 104, 115, 124, 130, 155, 166, 169, 184, 230, 248, 260, 299, 310, 332, 338, 403, 415, 460, 520, 598, 620, 664, 676, 713, 806, 830, 845, 920, 1079, 1196, 1240, 1352, 1426, 1495, 1612, 1660, 1690, 1909, 2015, 2158, 2392, 2573, 2852, 2990, 3224, 3320, 3380, 3565, 3818, 3887, 4030, 4316, 5146, 5239, 5395, 5704, 5980, 6760, 7130, 7636, 7774, 8060, 8632, 9269, 9545, 10292, 10478, 10790, 11960, 12865, 14027, 14260, 15272, 15548, 16120, 18538, 19090, 19435, 20584, 20956, 21580, 24817, 25730, 26195, 28054, 28520, 31096, 33449, 37076, 38180, 38870, 41912, 43160, 46345, 49634, 51460, 52390, 56108, 59179, 66898, 70135, 74152, 76360, 77740, 92690, 99268, 102920, 104780, 112216, 118358, 120497, 124085, 133796, 140270, 155480, 167245, 185380, 198536, 209560, 236716, 240994, 248170, 267592, 280540, 295895, 322621, 334490, 370760, 434837, 473432, 481988, 496340, 561080, 591790, 602485, 645242, 668980, 769327, 869674, 963976, 992680, 1183580, 1204970, 1290484, 1337960, 1538654, 1613105, 1739348, 2174185, 2367160, 2409940, 2580968, 3077308, 3226210, 3478696, 3846635, 4348370, 4819880, 6154616, 6452420, 7693270, 8696740, 10001251, 12904840, 15386540, 17393480, 20002502, 30773080, 40005004, 50006255, 80010008, 100012510, 200025020, 400050040]

約数ペア:

[(1, 400050040), (2, 200025020), (4, 100012510), (5, 80010008), (8, 50006255), (10, 40005004), (13, 30773080), (20, 20002502), (23, 17393480), (26, 15386540), (31, 12904840), (40, 10001251), (46, 8696740), (52, 7693270), (62, 6452420), (65, 6154616), (83, 4819880), (92, 4348370), (104, 3846635), (115, 3478696), (124, 3226210), (130, 3077308), (155, 2580968), (166, 2409940), (169, 2367160), (184, 2174185), (230, 1739348), (248, 1613105), (260, 1538654), (299, 1337960), (310, 1290484), (332, 1204970), (338, 1183580), (403, 992680), (415, 963976), (460, 869674), (520, 769327), (598, 668980), (620, 645242), (664, 602485), (676, 591790), (713, 561080), (806, 496340), (830, 481988), (845, 473432), (920, 434837), (1079, 370760), (1196, 334490), (1240, 322621), (1352, 295895), (1426, 280540), (1495, 267592), (1612, 248170), (1660, 240994), (1690, 236716), (1909, 209560), (2015, 198536), (2158, 185380), (2392, 167245), (2573, 155480), (2852, 140270), (2990, 133796), (3224, 124085), (3320, 120497), (3380, 118358), (3565, 112216), (3818, 104780), (3887, 102920), (4030, 99268), (4316, 92690), (5146, 77740), (5239, 76360), (5395, 74152), (5704, 70135), (5980, 66898), (6760, 59179), (7130, 56108), (7636, 52390), (7774, 51460), (8060, 49634), (8632, 46345), (9269, 43160), (9545, 41912), (10292, 38870), (10478, 38180), (10790, 37076), (11960, 33449), (12865, 31096), (14027, 28520), (14260, 28054), (15272, 26195), (15548, 25730), (16120, 24817), (18538, 21580), (19090, 20956), (19435, 20584)]