85308280

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{773}}^1$

素因数の和:904

約数の個数: 64

約数和(自身を含む): 200620800

約数和(自身を除く): 115312520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 89, 124, 155, 178, 248, 310, 356, 445, 620, 712, 773, 890, 1240, 1546, 1780, 2759, 3092, 3560, 3865, 5518, 6184, 7730, 11036, 13795, 15460, 22072, 23963, 27590, 30920, 47926, 55180, 68797, 95852, 110360, 119815, 137594, 191704, 239630, 275188, 343985, 479260, 550376, 687970, 958520, 1375940, 2132707, 2751880, 4265414, 8530828, 10663535, 17061656, 21327070, 42654140, 85308280]

約数ペア:

[(1, 85308280), (2, 42654140), (4, 21327070), (5, 17061656), (8, 10663535), (10, 8530828), (20, 4265414), (31, 2751880), (40, 2132707), (62, 1375940), (89, 958520), (124, 687970), (155, 550376), (178, 479260), (248, 343985), (310, 275188), (356, 239630), (445, 191704), (620, 137594), (712, 119815), (773, 110360), (890, 95852), (1240, 68797), (1546, 55180), (1780, 47926), (2759, 30920), (3092, 27590), (3560, 23963), (3865, 22072), (5518, 15460), (6184, 13795), (7730, 11036)]