78640430

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{197}}^1$

素因数の和:425

約数の個数: 64

約数和(自身を含む): 164229120

約数和(自身を除く): 85588690

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 191, 197, 209, 382, 394, 418, 955, 985, 1045, 1910, 1970, 2090, 2101, 2167, 3629, 3743, 4202, 4334, 7258, 7486, 10505, 10835, 18145, 18715, 21010, 21670, 36290, 37430, 37627, 39919, 41173, 75254, 79838, 82346, 188135, 199595, 205865, 376270, 399190, 411730, 413897, 714913, 827794, 1429826, 2069485, 3574565, 4138970, 7149130, 7864043, 15728086, 39320215, 78640430]

約数ペア:

[(1, 78640430), (2, 39320215), (5, 15728086), (10, 7864043), (11, 7149130), (19, 4138970), (22, 3574565), (38, 2069485), (55, 1429826), (95, 827794), (110, 714913), (190, 413897), (191, 411730), (197, 399190), (209, 376270), (382, 205865), (394, 199595), (418, 188135), (955, 82346), (985, 79838), (1045, 75254), (1910, 41173), (1970, 39919), (2090, 37627), (2101, 37430), (2167, 36290), (3629, 21670), (3743, 21010), (4202, 18715), (4334, 18145), (7258, 10835), (7486, 10505)]