639489648

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{51439}}^1$

素因数の和:51494

約数の個数: 80

約数和(自身を含む): 1939082240

約数和(自身を除く): 1299592592

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 37, 42, 48, 56, 74, 84, 111, 112, 148, 168, 222, 259, 296, 336, 444, 518, 592, 777, 888, 1036, 1554, 1776, 2072, 3108, 4144, 6216, 12432, 51439, 102878, 154317, 205756, 308634, 360073, 411512, 617268, 720146, 823024, 1080219, 1234536, 1440292, 1903243, 2160438, 2469072, 2880584, 3806486, 4320876, 5709729, 5761168, 7612972, 8641752, 11419458, 13322701, 15225944, 17283504, 22838916, 26645402, 30451888, 39968103, 45677832, 53290804, 79936206, 91355664, 106581608, 159872412, 213163216, 319744824, 639489648]

約数ペア:

[(1, 639489648), (2, 319744824), (3, 213163216), (4, 159872412), (6, 106581608), (7, 91355664), (8, 79936206), (12, 53290804), (14, 45677832), (16, 39968103), (21, 30451888), (24, 26645402), (28, 22838916), (37, 17283504), (42, 15225944), (48, 13322701), (56, 11419458), (74, 8641752), (84, 7612972), (111, 5761168), (112, 5709729), (148, 4320876), (168, 3806486), (222, 2880584), (259, 2469072), (296, 2160438), (336, 1903243), (444, 1440292), (518, 1234536), (592, 1080219), (777, 823024), (888, 720146), (1036, 617268), (1554, 411512), (1776, 360073), (2072, 308634), (3108, 205756), (4144, 154317), (6216, 102878), (12432, 51439)]