19442020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:149

約数の個数: 96

約数和(自身を含む): 47190528

約数和(自身を除く): 27748508

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 43, 47, 52, 65, 74, 86, 94, 130, 148, 172, 185, 188, 215, 235, 260, 370, 430, 470, 481, 559, 611, 740, 860, 940, 962, 1118, 1222, 1591, 1739, 1924, 2021, 2236, 2405, 2444, 2795, 3055, 3182, 3478, 4042, 4810, 5590, 6110, 6364, 6956, 7955, 8084, 8695, 9620, 10105, 11180, 12220, 15910, 17390, 20210, 20683, 22607, 26273, 31820, 34780, 40420, 41366, 45214, 52546, 74777, 82732, 90428, 103415, 105092, 113035, 131365, 149554, 206830, 226070, 262730, 299108, 373885, 413660, 452140, 525460, 747770, 972101, 1495540, 1944202, 3888404, 4860505, 9721010, 19442020]

約数ペア:

[(1, 19442020), (2, 9721010), (4, 4860505), (5, 3888404), (10, 1944202), (13, 1495540), (20, 972101), (26, 747770), (37, 525460), (43, 452140), (47, 413660), (52, 373885), (65, 299108), (74, 262730), (86, 226070), (94, 206830), (130, 149554), (148, 131365), (172, 113035), (185, 105092), (188, 103415), (215, 90428), (235, 82732), (260, 74777), (370, 52546), (430, 45214), (470, 41366), (481, 40420), (559, 34780), (611, 31820), (740, 26273), (860, 22607), (940, 20683), (962, 20210), (1118, 17390), (1222, 15910), (1591, 12220), (1739, 11180), (1924, 10105), (2021, 9620), (2236, 8695), (2405, 8084), (2444, 7955), (2795, 6956), (3055, 6364), (3182, 6110), (3478, 5590), (4042, 4810)]