77415680

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1951}}^1$

素因数の和:2003

約数の個数: 72

約数和(自身を含む): 191514624

約数和(自身を除く): 114098944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1951, 1984, 2480, 3902, 3968, 4960, 7804, 7936, 9755, 9920, 15608, 19510, 19840, 31216, 39020, 39680, 60481, 62432, 78040, 120962, 124864, 156080, 241924, 249728, 302405, 312160, 483848, 499456, 604810, 624320, 967696, 1209620, 1248640, 1935392, 2419240, 2497280, 3870784, 4838480, 7741568, 9676960, 15483136, 19353920, 38707840, 77415680]

約数ペア:

[(1, 77415680), (2, 38707840), (4, 19353920), (5, 15483136), (8, 9676960), (10, 7741568), (16, 4838480), (20, 3870784), (31, 2497280), (32, 2419240), (40, 1935392), (62, 1248640), (64, 1209620), (80, 967696), (124, 624320), (128, 604810), (155, 499456), (160, 483848), (248, 312160), (256, 302405), (310, 249728), (320, 241924), (496, 156080), (620, 124864), (640, 120962), (992, 78040), (1240, 62432), (1280, 60481), (1951, 39680), (1984, 39020), (2480, 31216), (3902, 19840), (3968, 19510), (4960, 15608), (7804, 9920), (7936, 9755)]