245166520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{4051}}^1$

素因数の和:4168

約数の個数: 64

約数和(自身を含む): 590781600

約数和(自身を除く): 345615080

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 89, 136, 170, 178, 340, 356, 445, 680, 712, 890, 1513, 1780, 3026, 3560, 4051, 6052, 7565, 8102, 12104, 15130, 16204, 20255, 30260, 32408, 40510, 60520, 68867, 81020, 137734, 162040, 275468, 344335, 360539, 550936, 688670, 721078, 1377340, 1442156, 1802695, 2754680, 2884312, 3605390, 6129163, 7210780, 12258326, 14421560, 24516652, 30645815, 49033304, 61291630, 122583260, 245166520]

約数ペア:

[(1, 245166520), (2, 122583260), (4, 61291630), (5, 49033304), (8, 30645815), (10, 24516652), (17, 14421560), (20, 12258326), (34, 7210780), (40, 6129163), (68, 3605390), (85, 2884312), (89, 2754680), (136, 1802695), (170, 1442156), (178, 1377340), (340, 721078), (356, 688670), (445, 550936), (680, 360539), (712, 344335), (890, 275468), (1513, 162040), (1780, 137734), (3026, 81020), (3560, 68867), (4051, 60520), (6052, 40510), (7565, 32408), (8102, 30260), (12104, 20255), (15130, 16204)]