18855100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{281}}^1$

素因数の和:367

約数の個数: 72

約数和(自身を含む): 45528336

約数和(自身を除く): 26673236

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 61, 100, 110, 122, 220, 244, 275, 281, 305, 550, 562, 610, 671, 1100, 1124, 1220, 1342, 1405, 1525, 2684, 2810, 3050, 3091, 3355, 5620, 6100, 6182, 6710, 7025, 12364, 13420, 14050, 15455, 16775, 17141, 28100, 30910, 33550, 34282, 61820, 67100, 68564, 77275, 85705, 154550, 171410, 188551, 309100, 342820, 377102, 428525, 754204, 857050, 942755, 1714100, 1885510, 3771020, 4713775, 9427550, 18855100]

約数ペア:

[(1, 18855100), (2, 9427550), (4, 4713775), (5, 3771020), (10, 1885510), (11, 1714100), (20, 942755), (22, 857050), (25, 754204), (44, 428525), (50, 377102), (55, 342820), (61, 309100), (100, 188551), (110, 171410), (122, 154550), (220, 85705), (244, 77275), (275, 68564), (281, 67100), (305, 61820), (550, 34282), (562, 33550), (610, 30910), (671, 28100), (1100, 17141), (1124, 16775), (1220, 15455), (1342, 14050), (1405, 13420), (1525, 12364), (2684, 7025), (2810, 6710), (3050, 6182), (3091, 6100), (3355, 5620)]