512687920

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{3389}}^1$

素因数の和:3494

約数の個数: 80

約数和(自身を含む): 1250991360

約数和(自身を除く): 738303440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 61, 62, 80, 122, 124, 155, 244, 248, 305, 310, 488, 496, 610, 620, 976, 1220, 1240, 1891, 2440, 2480, 3389, 3782, 4880, 6778, 7564, 9455, 13556, 15128, 16945, 18910, 27112, 30256, 33890, 37820, 54224, 67780, 75640, 105059, 135560, 151280, 206729, 210118, 271120, 413458, 420236, 525295, 826916, 840472, 1033645, 1050590, 1653832, 1680944, 2067290, 2101180, 3307664, 4134580, 4202360, 6408599, 8269160, 8404720, 12817198, 16538320, 25634396, 32042995, 51268792, 64085990, 102537584, 128171980, 256343960, 512687920]

約数ペア:

[(1, 512687920), (2, 256343960), (4, 128171980), (5, 102537584), (8, 64085990), (10, 51268792), (16, 32042995), (20, 25634396), (31, 16538320), (40, 12817198), (61, 8404720), (62, 8269160), (80, 6408599), (122, 4202360), (124, 4134580), (155, 3307664), (244, 2101180), (248, 2067290), (305, 1680944), (310, 1653832), (488, 1050590), (496, 1033645), (610, 840472), (620, 826916), (976, 525295), (1220, 420236), (1240, 413458), (1891, 271120), (2440, 210118), (2480, 206729), (3389, 151280), (3782, 135560), (4880, 105059), (6778, 75640), (7564, 67780), (9455, 54224), (13556, 37820), (15128, 33890), (16945, 30256), (18910, 27112)]