20494100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{601}}^1$

素因数の和:657

約数の個数: 72

約数和(自身を含む): 50163456

約数和(自身を除く): 29669356

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 31, 44, 50, 55, 62, 100, 110, 124, 155, 220, 275, 310, 341, 550, 601, 620, 682, 775, 1100, 1202, 1364, 1550, 1705, 2404, 3005, 3100, 3410, 6010, 6611, 6820, 8525, 12020, 13222, 15025, 17050, 18631, 26444, 30050, 33055, 34100, 37262, 60100, 66110, 74524, 93155, 132220, 165275, 186310, 204941, 330550, 372620, 409882, 465775, 661100, 819764, 931550, 1024705, 1863100, 2049410, 4098820, 5123525, 10247050, 20494100]

約数ペア:

[(1, 20494100), (2, 10247050), (4, 5123525), (5, 4098820), (10, 2049410), (11, 1863100), (20, 1024705), (22, 931550), (25, 819764), (31, 661100), (44, 465775), (50, 409882), (55, 372620), (62, 330550), (100, 204941), (110, 186310), (124, 165275), (155, 132220), (220, 93155), (275, 74524), (310, 66110), (341, 60100), (550, 37262), (601, 34100), (620, 33055), (682, 30050), (775, 26444), (1100, 18631), (1202, 17050), (1364, 15025), (1550, 13222), (1705, 12020), (2404, 8525), (3005, 6820), (3100, 6611), (3410, 6010)]