257711680

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{313}}^1$

素因数の和:444

約数の個数: 112

約数和(自身を含む): 643152384

約数和(自身を除く): 385440704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 83, 124, 155, 160, 166, 248, 310, 313, 320, 332, 415, 496, 620, 626, 664, 830, 992, 1240, 1252, 1328, 1565, 1660, 1984, 2480, 2504, 2573, 2656, 3130, 3320, 4960, 5008, 5146, 5312, 6260, 6640, 9703, 9920, 10016, 10292, 12520, 12865, 13280, 19406, 20032, 20584, 25040, 25730, 25979, 26560, 38812, 41168, 48515, 50080, 51460, 51958, 77624, 82336, 97030, 100160, 102920, 103916, 129895, 155248, 164672, 194060, 205840, 207832, 259790, 310496, 388120, 411680, 415664, 519580, 620992, 776240, 805349, 823360, 831328, 1039160, 1552480, 1610698, 1662656, 2078320, 3104960, 3221396, 4026745, 4156640, 6442792, 8053490, 8313280, 12885584, 16106980, 25771168, 32213960, 51542336, 64427920, 128855840, 257711680]

約数ペア:

[(1, 257711680), (2, 128855840), (4, 64427920), (5, 51542336), (8, 32213960), (10, 25771168), (16, 16106980), (20, 12885584), (31, 8313280), (32, 8053490), (40, 6442792), (62, 4156640), (64, 4026745), (80, 3221396), (83, 3104960), (124, 2078320), (155, 1662656), (160, 1610698), (166, 1552480), (248, 1039160), (310, 831328), (313, 823360), (320, 805349), (332, 776240), (415, 620992), (496, 519580), (620, 415664), (626, 411680), (664, 388120), (830, 310496), (992, 259790), (1240, 207832), (1252, 205840), (1328, 194060), (1565, 164672), (1660, 155248), (1984, 129895), (2480, 103916), (2504, 102920), (2573, 100160), (2656, 97030), (3130, 82336), (3320, 77624), (4960, 51958), (5008, 51460), (5146, 50080), (5312, 48515), (6260, 41168), (6640, 38812), (9703, 26560), (9920, 25979), (10016, 25730), (10292, 25040), (12520, 20584), (12865, 20032), (13280, 19406)]