15563240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1$

素因数の和:223

約数の個数: 128

約数和(自身を含む): 45342720

約数和(自身を除く): 29779480

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 31, 35, 40, 44, 55, 56, 62, 70, 77, 88, 110, 124, 140, 154, 155, 163, 217, 220, 248, 280, 308, 310, 326, 341, 385, 434, 440, 616, 620, 652, 682, 770, 815, 868, 1085, 1141, 1240, 1304, 1364, 1540, 1630, 1705, 1736, 1793, 2170, 2282, 2387, 2728, 3080, 3260, 3410, 3586, 4340, 4564, 4774, 5053, 5705, 6520, 6820, 7172, 8680, 8965, 9128, 9548, 10106, 11410, 11935, 12551, 13640, 14344, 17930, 19096, 20212, 22820, 23870, 25102, 25265, 35371, 35860, 40424, 45640, 47740, 50204, 50530, 55583, 62755, 70742, 71720, 95480, 100408, 101060, 111166, 125510, 141484, 176855, 202120, 222332, 251020, 277915, 282968, 353710, 389081, 444664, 502040, 555830, 707420, 778162, 1111660, 1414840, 1556324, 1945405, 2223320, 3112648, 3890810, 7781620, 15563240]

約数ペア:

[(1, 15563240), (2, 7781620), (4, 3890810), (5, 3112648), (7, 2223320), (8, 1945405), (10, 1556324), (11, 1414840), (14, 1111660), (20, 778162), (22, 707420), (28, 555830), (31, 502040), (35, 444664), (40, 389081), (44, 353710), (55, 282968), (56, 277915), (62, 251020), (70, 222332), (77, 202120), (88, 176855), (110, 141484), (124, 125510), (140, 111166), (154, 101060), (155, 100408), (163, 95480), (217, 71720), (220, 70742), (248, 62755), (280, 55583), (308, 50530), (310, 50204), (326, 47740), (341, 45640), (385, 40424), (434, 35860), (440, 35371), (616, 25265), (620, 25102), (652, 23870), (682, 22820), (770, 20212), (815, 19096), (868, 17930), (1085, 14344), (1141, 13640), (1240, 12551), (1304, 11935), (1364, 11410), (1540, 10106), (1630, 9548), (1705, 9128), (1736, 8965), (1793, 8680), (2170, 7172), (2282, 6820), (2387, 6520), (2728, 5705), (3080, 5053), (3260, 4774), (3410, 4564), (3586, 4340)]