30928390

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:205

約数の個数: 64

約数和(自身を含む): 62208000

約数和(自身を除く): 31279610

約数列:

[1, 2, 5, 10, 19, 31, 38, 59, 62, 89, 95, 118, 155, 178, 190, 295, 310, 445, 589, 590, 890, 1121, 1178, 1691, 1829, 2242, 2759, 2945, 3382, 3658, 5251, 5518, 5605, 5890, 8455, 9145, 10502, 11210, 13795, 16910, 18290, 26255, 27590, 34751, 52421, 52510, 69502, 99769, 104842, 162781, 173755, 199538, 262105, 325562, 347510, 498845, 524210, 813905, 997690, 1627810, 3092839, 6185678, 15464195, 30928390]

約数ペア:

[(1, 30928390), (2, 15464195), (5, 6185678), (10, 3092839), (19, 1627810), (31, 997690), (38, 813905), (59, 524210), (62, 498845), (89, 347510), (95, 325562), (118, 262105), (155, 199538), (178, 173755), (190, 162781), (295, 104842), (310, 99769), (445, 69502), (589, 52510), (590, 52421), (890, 34751), (1121, 27590), (1178, 26255), (1691, 18290), (1829, 16910), (2242, 13795), (2759, 11210), (2945, 10502), (3382, 9145), (3658, 8455), (5251, 5890), (5518, 5605)]