640247486520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{367}}^1\times {\mathrm{632081}}^1$

素因数の和:632485

約数の個数: 128

約数和(自身を含む): 2009717360640

約数和(自身を除く): 1369469874120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 184, 230, 276, 345, 367, 460, 552, 690, 734, 920, 1101, 1380, 1468, 1835, 2202, 2760, 2936, 3670, 4404, 5505, 7340, 8441, 8808, 11010, 14680, 16882, 22020, 25323, 33764, 42205, 44040, 50646, 67528, 84410, 101292, 126615, 168820, 202584, 253230, 337640, 506460, 632081, 1012920, 1264162, 1896243, 2528324, 3160405, 3792486, 5056648, 6320810, 7584972, 9481215, 12641620, 14537863, 15169944, 18962430, 25283240, 29075726, 37924860, 43613589, 58151452, 72689315, 75849720, 87227178, 116302904, 145378630, 174454356, 218067945, 231973727, 290757260, 348908712, 436135890, 463947454, 581514520, 695921181, 872271780, 927894908, 1159868635, 1391842362, 1744543560, 1855789816, 2319737270, 2783684724, 3479605905, 4639474540, 5335395721, 5567369448, 6959211810, 9278949080, 10670791442, 13918423620, 16006187163, 21341582884, 26676978605, 27836847240, 32012374326, 42683165768, 53353957210, 64024748652, 80030935815, 106707914420, 128049497304, 160061871630, 213415828840, 320123743260, 640247486520]

約数ペア:

[(1, 640247486520), (2, 320123743260), (3, 213415828840), (4, 160061871630), (5, 128049497304), (6, 106707914420), (8, 80030935815), (10, 64024748652), (12, 53353957210), (15, 42683165768), (20, 32012374326), (23, 27836847240), (24, 26676978605), (30, 21341582884), (40, 16006187163), (46, 13918423620), (60, 10670791442), (69, 9278949080), (92, 6959211810), (115, 5567369448), (120, 5335395721), (138, 4639474540), (184, 3479605905), (230, 2783684724), (276, 2319737270), (345, 1855789816), (367, 1744543560), (460, 1391842362), (552, 1159868635), (690, 927894908), (734, 872271780), (920, 695921181), (1101, 581514520), (1380, 463947454), (1468, 436135890), (1835, 348908712), (2202, 290757260), (2760, 231973727), (2936, 218067945), (3670, 174454356), (4404, 145378630), (5505, 116302904), (7340, 87227178), (8441, 75849720), (8808, 72689315), (11010, 58151452), (14680, 43613589), (16882, 37924860), (22020, 29075726), (25323, 25283240), (33764, 18962430), (42205, 15169944), (44040, 14537863), (50646, 12641620), (67528, 9481215), (84410, 7584972), (101292, 6320810), (126615, 5056648), (168820, 3792486), (202584, 3160405), (253230, 2528324), (337640, 1896243), (506460, 1264162), (632081, 1012920)]