626951440

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{2503}}^1$

素因数の和:2648

約数の個数: 80

約数和(自身を含む): 1520188416

約数和(自身を除く): 893236976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 101, 124, 155, 202, 248, 310, 404, 496, 505, 620, 808, 1010, 1240, 1616, 2020, 2480, 2503, 3131, 4040, 5006, 6262, 8080, 10012, 12515, 12524, 15655, 20024, 25030, 25048, 31310, 40048, 50060, 50096, 62620, 77593, 100120, 125240, 155186, 200240, 250480, 252803, 310372, 387965, 505606, 620744, 775930, 1011212, 1241488, 1264015, 1551860, 2022424, 2528030, 3103720, 4044848, 5056060, 6207440, 7836893, 10112120, 15673786, 20224240, 31347572, 39184465, 62695144, 78368930, 125390288, 156737860, 313475720, 626951440]

約数ペア:

[(1, 626951440), (2, 313475720), (4, 156737860), (5, 125390288), (8, 78368930), (10, 62695144), (16, 39184465), (20, 31347572), (31, 20224240), (40, 15673786), (62, 10112120), (80, 7836893), (101, 6207440), (124, 5056060), (155, 4044848), (202, 3103720), (248, 2528030), (310, 2022424), (404, 1551860), (496, 1264015), (505, 1241488), (620, 1011212), (808, 775930), (1010, 620744), (1240, 505606), (1616, 387965), (2020, 310372), (2480, 252803), (2503, 250480), (3131, 200240), (4040, 155186), (5006, 125240), (6262, 100120), (8080, 77593), (10012, 62620), (12515, 50096), (12524, 50060), (15655, 40048), (20024, 31310), (25030, 25048)]