72517780

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^2\times {\mathrm{53}}^1$

素因数の和:185

約数の個数: 72

約数和(自身を含む): 163146312

約数和(自身を除く): 90628532

約数列:

[1, 2, 4, 5, 10, 20, 37, 43, 53, 74, 86, 106, 148, 172, 185, 212, 215, 265, 370, 430, 530, 740, 860, 1060, 1591, 1849, 1961, 2279, 3182, 3698, 3922, 4558, 6364, 7396, 7844, 7955, 9116, 9245, 9805, 11395, 15910, 18490, 19610, 22790, 31820, 36980, 39220, 45580, 68413, 84323, 97997, 136826, 168646, 195994, 273652, 337292, 342065, 391988, 421615, 489985, 684130, 843230, 979970, 1368260, 1686460, 1959940, 3625889, 7251778, 14503556, 18129445, 36258890, 72517780]

約数ペア:

[(1, 72517780), (2, 36258890), (4, 18129445), (5, 14503556), (10, 7251778), (20, 3625889), (37, 1959940), (43, 1686460), (53, 1368260), (74, 979970), (86, 843230), (106, 684130), (148, 489985), (172, 421615), (185, 391988), (212, 342065), (215, 337292), (265, 273652), (370, 195994), (430, 168646), (530, 136826), (740, 97997), (860, 84323), (1060, 68413), (1591, 45580), (1849, 39220), (1961, 36980), (2279, 31820), (3182, 22790), (3698, 19610), (3922, 18490), (4558, 15910), (6364, 11395), (7396, 9805), (7844, 9245), (7955, 9116)]