20959770

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{241}}^1$

素因数の和:487

約数の個数: 64

約数和(自身を含む): 54641664

約数和(自身を除く): 33681894

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 223, 241, 390, 446, 482, 669, 723, 1115, 1205, 1338, 1446, 2230, 2410, 2899, 3133, 3345, 3615, 5798, 6266, 6690, 7230, 8697, 9399, 14495, 15665, 17394, 18798, 28990, 31330, 43485, 46995, 53743, 86970, 93990, 107486, 161229, 268715, 322458, 537430, 698659, 806145, 1397318, 1612290, 2095977, 3493295, 4191954, 6986590, 10479885, 20959770]

約数ペア:

[(1, 20959770), (2, 10479885), (3, 6986590), (5, 4191954), (6, 3493295), (10, 2095977), (13, 1612290), (15, 1397318), (26, 806145), (30, 698659), (39, 537430), (65, 322458), (78, 268715), (130, 161229), (195, 107486), (223, 93990), (241, 86970), (390, 53743), (446, 46995), (482, 43485), (669, 31330), (723, 28990), (1115, 18798), (1205, 17394), (1338, 15665), (1446, 14495), (2230, 9399), (2410, 8697), (2899, 7230), (3133, 6690), (3345, 6266), (3615, 5798)]