77646320

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{239}}^1$

素因数の和:414

約数の個数: 80

約数和(自身を含む): 188559360

約数和(自身を除く): 110913040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 131, 155, 239, 248, 262, 310, 478, 496, 524, 620, 655, 956, 1048, 1195, 1240, 1310, 1912, 2096, 2390, 2480, 2620, 3824, 4061, 4780, 5240, 7409, 8122, 9560, 10480, 14818, 16244, 19120, 20305, 29636, 31309, 32488, 37045, 40610, 59272, 62618, 64976, 74090, 81220, 118544, 125236, 148180, 156545, 162440, 250472, 296360, 313090, 324880, 500944, 592720, 626180, 970579, 1252360, 1941158, 2504720, 3882316, 4852895, 7764632, 9705790, 15529264, 19411580, 38823160, 77646320]

約数ペア:

[(1, 77646320), (2, 38823160), (4, 19411580), (5, 15529264), (8, 9705790), (10, 7764632), (16, 4852895), (20, 3882316), (31, 2504720), (40, 1941158), (62, 1252360), (80, 970579), (124, 626180), (131, 592720), (155, 500944), (239, 324880), (248, 313090), (262, 296360), (310, 250472), (478, 162440), (496, 156545), (524, 148180), (620, 125236), (655, 118544), (956, 81220), (1048, 74090), (1195, 64976), (1240, 62618), (1310, 59272), (1912, 40610), (2096, 37045), (2390, 32488), (2480, 31309), (2620, 29636), (3824, 20305), (4061, 19120), (4780, 16244), (5240, 14818), (7409, 10480), (8122, 9560)]