20572890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1$

素因数の和:176

約数の個数: 128

約数和(自身を含む): 58786560

約数和(自身を除く): 38213670

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 17, 26, 29, 30, 34, 39, 51, 58, 65, 78, 85, 87, 102, 107, 130, 145, 170, 174, 195, 214, 221, 255, 290, 321, 377, 390, 435, 442, 493, 510, 535, 642, 663, 754, 870, 986, 1070, 1105, 1131, 1326, 1391, 1479, 1605, 1819, 1885, 2210, 2262, 2465, 2782, 2958, 3103, 3210, 3315, 3638, 3770, 4173, 4930, 5457, 5655, 6206, 6409, 6630, 6955, 7395, 8346, 9095, 9309, 10914, 11310, 12818, 13910, 14790, 15515, 18190, 18618, 19227, 20865, 23647, 27285, 31030, 32045, 38454, 40339, 41730, 46545, 47294, 52751, 54570, 64090, 70941, 80678, 93090, 96135, 105502, 118235, 121017, 141882, 158253, 192270, 201695, 236470, 242034, 263755, 316506, 354705, 403390, 527510, 605085, 685763, 709410, 791265, 1210170, 1371526, 1582530, 2057289, 3428815, 4114578, 6857630, 10286445, 20572890]

約数ペア:

[(1, 20572890), (2, 10286445), (3, 6857630), (5, 4114578), (6, 3428815), (10, 2057289), (13, 1582530), (15, 1371526), (17, 1210170), (26, 791265), (29, 709410), (30, 685763), (34, 605085), (39, 527510), (51, 403390), (58, 354705), (65, 316506), (78, 263755), (85, 242034), (87, 236470), (102, 201695), (107, 192270), (130, 158253), (145, 141882), (170, 121017), (174, 118235), (195, 105502), (214, 96135), (221, 93090), (255, 80678), (290, 70941), (321, 64090), (377, 54570), (390, 52751), (435, 47294), (442, 46545), (493, 41730), (510, 40339), (535, 38454), (642, 32045), (663, 31030), (754, 27285), (870, 23647), (986, 20865), (1070, 19227), (1105, 18618), (1131, 18190), (1326, 15515), (1391, 14790), (1479, 13910), (1605, 12818), (1819, 11310), (1885, 10914), (2210, 9309), (2262, 9095), (2465, 8346), (2782, 7395), (2958, 6955), (3103, 6630), (3210, 6409), (3315, 6206), (3638, 5655), (3770, 5457), (4173, 4930)]