155809720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{11423}}^1$

素因数の和:11476

約数の個数: 64

約数和(自身を含む): 394813440

約数和(自身を除く): 239003720

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, 11423, 13640, 22846, 45692, 57115, 91384, 114230, 125653, 228460, 251306, 354113, 456920, 502612, 628265, 708226, 1005224, 1256530, 1416452, 1770565, 2513060, 2832904, 3541130, 3895243, 5026120, 7082260, 7790486, 14164520, 15580972, 19476215, 31161944, 38952430, 77904860, 155809720]

約数ペア:

[(1, 155809720), (2, 77904860), (4, 38952430), (5, 31161944), (8, 19476215), (10, 15580972), (11, 14164520), (20, 7790486), (22, 7082260), (31, 5026120), (40, 3895243), (44, 3541130), (55, 2832904), (62, 2513060), (88, 1770565), (110, 1416452), (124, 1256530), (155, 1005224), (220, 708226), (248, 628265), (310, 502612), (341, 456920), (440, 354113), (620, 251306), (682, 228460), (1240, 125653), (1364, 114230), (1705, 91384), (2728, 57115), (3410, 45692), (6820, 22846), (11423, 13640)]