64427920

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{313}}^1$

素因数の和:440

約数の個数: 80

約数和(自身を含む): 156989952

約数和(自身を除く): 92562032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 83, 124, 155, 166, 248, 310, 313, 332, 415, 496, 620, 626, 664, 830, 1240, 1252, 1328, 1565, 1660, 2480, 2504, 2573, 3130, 3320, 5008, 5146, 6260, 6640, 9703, 10292, 12520, 12865, 19406, 20584, 25040, 25730, 25979, 38812, 41168, 48515, 51460, 51958, 77624, 97030, 102920, 103916, 129895, 155248, 194060, 205840, 207832, 259790, 388120, 415664, 519580, 776240, 805349, 1039160, 1610698, 2078320, 3221396, 4026745, 6442792, 8053490, 12885584, 16106980, 32213960, 64427920]

約数ペア:

[(1, 64427920), (2, 32213960), (4, 16106980), (5, 12885584), (8, 8053490), (10, 6442792), (16, 4026745), (20, 3221396), (31, 2078320), (40, 1610698), (62, 1039160), (80, 805349), (83, 776240), (124, 519580), (155, 415664), (166, 388120), (248, 259790), (310, 207832), (313, 205840), (332, 194060), (415, 155248), (496, 129895), (620, 103916), (626, 102920), (664, 97030), (830, 77624), (1240, 51958), (1252, 51460), (1328, 48515), (1565, 41168), (1660, 38812), (2480, 25979), (2504, 25730), (2573, 25040), (3130, 20584), (3320, 19406), (5008, 12865), (5146, 12520), (6260, 10292), (6640, 9703)]