155400520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{11393}}^1$

素因数の和:11446

約数の個数: 64

約数和(自身を含む): 393776640

約数和(自身を除く): 238376120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 440, 620, 682, 1240, 1364, 1705, 2728, 3410, 6820, 11393, 13640, 22786, 45572, 56965, 91144, 113930, 125323, 227860, 250646, 353183, 455720, 501292, 626615, 706366, 1002584, 1253230, 1412732, 1765915, 2506460, 2825464, 3531830, 3885013, 5012920, 7063660, 7770026, 14127320, 15540052, 19425065, 31080104, 38850130, 77700260, 155400520]

約数ペア:

[(1, 155400520), (2, 77700260), (4, 38850130), (5, 31080104), (8, 19425065), (10, 15540052), (11, 14127320), (20, 7770026), (22, 7063660), (31, 5012920), (40, 3885013), (44, 3531830), (55, 2825464), (62, 2506460), (88, 1765915), (110, 1412732), (124, 1253230), (155, 1002584), (220, 706366), (248, 626615), (310, 501292), (341, 455720), (440, 353183), (620, 250646), (682, 227860), (1240, 125323), (1364, 113930), (1705, 91144), (2728, 56965), (3410, 45572), (6820, 22786), (11393, 13640)]