20128776890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{157}}^1\times {\mathrm{11437}}^1$

素因数の和:11679

約数の個数: 64

約数和(自身を含む): 39035606400

約数和(自身を除く): 18906829510

約数列:

[1, 2, 5, 10, 19, 38, 59, 95, 118, 157, 190, 295, 314, 590, 785, 1121, 1570, 2242, 2983, 5605, 5966, 9263, 11210, 11437, 14915, 18526, 22874, 29830, 46315, 57185, 92630, 114370, 175997, 217303, 351994, 434606, 674783, 879985, 1086515, 1349566, 1759970, 1795609, 2173030, 3373915, 3591218, 6747830, 8978045, 12820877, 17956090, 25641754, 34116571, 64104385, 68233142, 105940931, 128208770, 170582855, 211881862, 341165710, 529704655, 1059409310, 2012877689, 4025755378, 10064388445, 20128776890]

約数ペア:

[(1, 20128776890), (2, 10064388445), (5, 4025755378), (10, 2012877689), (19, 1059409310), (38, 529704655), (59, 341165710), (95, 211881862), (118, 170582855), (157, 128208770), (190, 105940931), (295, 68233142), (314, 64104385), (590, 34116571), (785, 25641754), (1121, 17956090), (1570, 12820877), (2242, 8978045), (2983, 6747830), (5605, 3591218), (5966, 3373915), (9263, 2173030), (11210, 1795609), (11437, 1759970), (14915, 1349566), (18526, 1086515), (22874, 879985), (29830, 674783), (46315, 434606), (57185, 351994), (92630, 217303), (114370, 175997)]