20284524

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{487}}^1$

素因数の和:599

約数の個数: 72

約数和(自身を含む): 55954080

約数和(自身を除く): 35669556

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 89, 117, 156, 178, 234, 267, 356, 468, 487, 534, 801, 974, 1068, 1157, 1461, 1602, 1948, 2314, 2922, 3204, 3471, 4383, 4628, 5844, 6331, 6942, 8766, 10413, 12662, 13884, 17532, 18993, 20826, 25324, 37986, 41652, 43343, 56979, 75972, 86686, 113958, 130029, 173372, 227916, 260058, 390087, 520116, 563459, 780174, 1126918, 1560348, 1690377, 2253836, 3380754, 5071131, 6761508, 10142262, 20284524]

約数ペア:

[(1, 20284524), (2, 10142262), (3, 6761508), (4, 5071131), (6, 3380754), (9, 2253836), (12, 1690377), (13, 1560348), (18, 1126918), (26, 780174), (36, 563459), (39, 520116), (52, 390087), (78, 260058), (89, 227916), (117, 173372), (156, 130029), (178, 113958), (234, 86686), (267, 75972), (356, 56979), (468, 43343), (487, 41652), (534, 37986), (801, 25324), (974, 20826), (1068, 18993), (1157, 17532), (1461, 13884), (1602, 12662), (1948, 10413), (2314, 8766), (2922, 6942), (3204, 6331), (3471, 5844), (4383, 4628)]