128855840

素因数分解:

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

素因数の和:442

約数の個数: 96

約数和(自身を含む): 319044096

約数和(自身を除く): 190188256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 83, 124, 155, 160, 166, 248, 310, 313, 332, 415, 496, 620, 626, 664, 830, 992, 1240, 1252, 1328, 1565, 1660, 2480, 2504, 2573, 2656, 3130, 3320, 4960, 5008, 5146, 6260, 6640, 9703, 10016, 10292, 12520, 12865, 13280, 19406, 20584, 25040, 25730, 25979, 38812, 41168, 48515, 50080, 51460, 51958, 77624, 82336, 97030, 102920, 103916, 129895, 155248, 194060, 205840, 207832, 259790, 310496, 388120, 411680, 415664, 519580, 776240, 805349, 831328, 1039160, 1552480, 1610698, 2078320, 3221396, 4026745, 4156640, 6442792, 8053490, 12885584, 16106980, 25771168, 32213960, 64427920, 128855840]

約数ペア:

[(1, 128855840), (2, 64427920), (4, 32213960), (5, 25771168), (8, 16106980), (10, 12885584), (16, 8053490), (20, 6442792), (31, 4156640), (32, 4026745), (40, 3221396), (62, 2078320), (80, 1610698), (83, 1552480), (124, 1039160), (155, 831328), (160, 805349), (166, 776240), (248, 519580), (310, 415664), (313, 411680), (332, 388120), (415, 310496), (496, 259790), (620, 207832), (626, 205840), (664, 194060), (830, 155248), (992, 129895), (1240, 103916), (1252, 102920), (1328, 97030), (1565, 82336), (1660, 77624), (2480, 51958), (2504, 51460), (2573, 50080), (2656, 48515), (3130, 41168), (3320, 38812), (4960, 25979), (5008, 25730), (5146, 25040), (6260, 20584), (6640, 19406), (9703, 13280), (10016, 12865), (10292, 12520)]