7886156720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{399097}}^1$

素因数の和:399142

約数の個数: 80

約数和(自身を含む): 20785023840

約数和(自身を除く): 12898867120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 190, 208, 247, 260, 304, 380, 494, 520, 760, 988, 1040, 1235, 1520, 1976, 2470, 3952, 4940, 9880, 19760, 399097, 798194, 1596388, 1995485, 3192776, 3990970, 5188261, 6385552, 7582843, 7981940, 10376522, 15165686, 15963880, 20753044, 25941305, 30331372, 31927760, 37914215, 41506088, 51882610, 60662744, 75828430, 83012176, 98576959, 103765220, 121325488, 151656860, 197153918, 207530440, 303313720, 394307836, 415060880, 492884795, 606627440, 788615672, 985769590, 1577231344, 1971539180, 3943078360, 7886156720]

約数ペア:

[(1, 7886156720), (2, 3943078360), (4, 1971539180), (5, 1577231344), (8, 985769590), (10, 788615672), (13, 606627440), (16, 492884795), (19, 415060880), (20, 394307836), (26, 303313720), (38, 207530440), (40, 197153918), (52, 151656860), (65, 121325488), (76, 103765220), (80, 98576959), (95, 83012176), (104, 75828430), (130, 60662744), (152, 51882610), (190, 41506088), (208, 37914215), (247, 31927760), (260, 30331372), (304, 25941305), (380, 20753044), (494, 15963880), (520, 15165686), (760, 10376522), (988, 7981940), (1040, 7582843), (1235, 6385552), (1520, 5188261), (1976, 3990970), (2470, 3192776), (3952, 1995485), (4940, 1596388), (9880, 798194), (19760, 399097)]