21709307440

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{110807}}^1$

素因数の和:110930

約数の個数: 80

約数和(自身を含む): 52762337280

約数和(自身を除く): 31053029840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 79, 80, 124, 155, 158, 248, 310, 316, 395, 496, 620, 632, 790, 1240, 1264, 1580, 2449, 2480, 3160, 4898, 6320, 9796, 12245, 19592, 24490, 39184, 48980, 97960, 110807, 195920, 221614, 443228, 554035, 886456, 1108070, 1772912, 2216140, 3435017, 4432280, 6870034, 8753753, 8864560, 13740068, 17175085, 17507506, 27480136, 34350170, 35015012, 43768765, 54960272, 68700340, 70030024, 87537530, 137400680, 140060048, 175075060, 271366343, 274801360, 350150120, 542732686, 700300240, 1085465372, 1356831715, 2170930744, 2713663430, 4341861488, 5427326860, 10854653720, 21709307440]

約数ペア:

[(1, 21709307440), (2, 10854653720), (4, 5427326860), (5, 4341861488), (8, 2713663430), (10, 2170930744), (16, 1356831715), (20, 1085465372), (31, 700300240), (40, 542732686), (62, 350150120), (79, 274801360), (80, 271366343), (124, 175075060), (155, 140060048), (158, 137400680), (248, 87537530), (310, 70030024), (316, 68700340), (395, 54960272), (496, 43768765), (620, 35015012), (632, 34350170), (790, 27480136), (1240, 17507506), (1264, 17175085), (1580, 13740068), (2449, 8864560), (2480, 8753753), (3160, 6870034), (4898, 4432280), (6320, 3435017), (9796, 2216140), (12245, 1772912), (19592, 1108070), (24490, 886456), (39184, 554035), (48980, 443228), (97960, 221614), (110807, 195920)]