664115664

素因数分解:

$2^4\times 3^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{19681}}^1$

素因数の和:19748

約数の個数: 80

約数和(自身を含む): 1854831680

約数和(自身を除く): 1190716016

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 37, 38, 48, 57, 74, 76, 111, 114, 148, 152, 222, 228, 296, 304, 444, 456, 592, 703, 888, 912, 1406, 1776, 2109, 2812, 4218, 5624, 8436, 11248, 16872, 19681, 33744, 39362, 59043, 78724, 118086, 157448, 236172, 314896, 373939, 472344, 728197, 747878, 944688, 1121817, 1456394, 1495756, 2184591, 2243634, 2912788, 2991512, 4369182, 4487268, 5825576, 5983024, 8738364, 8974536, 11651152, 13835743, 17476728, 17949072, 27671486, 34953456, 41507229, 55342972, 83014458, 110685944, 166028916, 221371888, 332057832, 664115664]

約数ペア:

[(1, 664115664), (2, 332057832), (3, 221371888), (4, 166028916), (6, 110685944), (8, 83014458), (12, 55342972), (16, 41507229), (19, 34953456), (24, 27671486), (37, 17949072), (38, 17476728), (48, 13835743), (57, 11651152), (74, 8974536), (76, 8738364), (111, 5983024), (114, 5825576), (148, 4487268), (152, 4369182), (222, 2991512), (228, 2912788), (296, 2243634), (304, 2184591), (444, 1495756), (456, 1456394), (592, 1121817), (703, 944688), (888, 747878), (912, 728197), (1406, 472344), (1776, 373939), (2109, 314896), (2812, 236172), (4218, 157448), (5624, 118086), (8436, 78724), (11248, 59043), (16872, 39362), (19681, 33744)]