205573160

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{20807}}^1$

素因数の和:20850

約数の個数: 64

約数和(自身を含む): 524361600

約数和(自身を除く): 318788440

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1976, 2470, 4940, 9880, 20807, 41614, 83228, 104035, 166456, 208070, 270491, 395333, 416140, 540982, 790666, 832280, 1081964, 1352455, 1581332, 1976665, 2163928, 2704910, 3162664, 3953330, 5139329, 5409820, 7906660, 10278658, 10819640, 15813320, 20557316, 25696645, 41114632, 51393290, 102786580, 205573160]

約数ペア:

[(1, 205573160), (2, 102786580), (4, 51393290), (5, 41114632), (8, 25696645), (10, 20557316), (13, 15813320), (19, 10819640), (20, 10278658), (26, 7906660), (38, 5409820), (40, 5139329), (52, 3953330), (65, 3162664), (76, 2704910), (95, 2163928), (104, 1976665), (130, 1581332), (152, 1352455), (190, 1081964), (247, 832280), (260, 790666), (380, 540982), (494, 416140), (520, 395333), (760, 270491), (988, 208070), (1235, 166456), (1976, 104035), (2470, 83228), (4940, 41614), (9880, 20807)]