65575760

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{227}}^1$

素因数の和:420

約数の個数: 80

約数和(自身を含む): 160811136

約数和(自身を除く): 95235376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 157, 184, 227, 230, 314, 368, 454, 460, 628, 785, 908, 920, 1135, 1256, 1570, 1816, 1840, 2270, 2512, 3140, 3611, 3632, 4540, 5221, 6280, 7222, 9080, 10442, 12560, 14444, 18055, 18160, 20884, 26105, 28888, 35639, 36110, 41768, 52210, 57776, 71278, 72220, 83536, 104420, 142556, 144440, 178195, 208840, 285112, 288880, 356390, 417680, 570224, 712780, 819697, 1425560, 1639394, 2851120, 3278788, 4098485, 6557576, 8196970, 13115152, 16393940, 32787880, 65575760]

約数ペア:

[(1, 65575760), (2, 32787880), (4, 16393940), (5, 13115152), (8, 8196970), (10, 6557576), (16, 4098485), (20, 3278788), (23, 2851120), (40, 1639394), (46, 1425560), (80, 819697), (92, 712780), (115, 570224), (157, 417680), (184, 356390), (227, 288880), (230, 285112), (314, 208840), (368, 178195), (454, 144440), (460, 142556), (628, 104420), (785, 83536), (908, 72220), (920, 71278), (1135, 57776), (1256, 52210), (1570, 41768), (1816, 36110), (1840, 35639), (2270, 28888), (2512, 26105), (3140, 20884), (3611, 18160), (3632, 18055), (4540, 14444), (5221, 12560), (6280, 10442), (7222, 9080)]