72438990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{661}}^1$

素因数の和:965

約数の個数: 64

約数和(自身を含む): 188177472

約数和(自身を除く): 115738482

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 281, 390, 562, 661, 843, 1322, 1405, 1686, 1983, 2810, 3305, 3653, 3966, 4215, 6610, 7306, 8430, 8593, 9915, 10959, 17186, 18265, 19830, 21918, 25779, 36530, 42965, 51558, 54795, 85930, 109590, 128895, 185741, 257790, 371482, 557223, 928705, 1114446, 1857410, 2414633, 2786115, 4829266, 5572230, 7243899, 12073165, 14487798, 24146330, 36219495, 72438990]

約数ペア:

[(1, 72438990), (2, 36219495), (3, 24146330), (5, 14487798), (6, 12073165), (10, 7243899), (13, 5572230), (15, 4829266), (26, 2786115), (30, 2414633), (39, 1857410), (65, 1114446), (78, 928705), (130, 557223), (195, 371482), (281, 257790), (390, 185741), (562, 128895), (661, 109590), (843, 85930), (1322, 54795), (1405, 51558), (1686, 42965), (1983, 36530), (2810, 25779), (3305, 21918), (3653, 19830), (3966, 18265), (4215, 17186), (6610, 10959), (7306, 9915), (8430, 8593)]