19167920

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1$

素因数の和:234

約数の個数: 80

約数和(自身を含む): 47139840

約数和(自身を除く): 27971920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 59, 62, 80, 118, 124, 131, 155, 236, 248, 262, 295, 310, 472, 496, 524, 590, 620, 655, 944, 1048, 1180, 1240, 1310, 1829, 2096, 2360, 2480, 2620, 3658, 4061, 4720, 5240, 7316, 7729, 8122, 9145, 10480, 14632, 15458, 16244, 18290, 20305, 29264, 30916, 32488, 36580, 38645, 40610, 61832, 64976, 73160, 77290, 81220, 123664, 146320, 154580, 162440, 239599, 309160, 324880, 479198, 618320, 958396, 1197995, 1916792, 2395990, 3833584, 4791980, 9583960, 19167920]

約数ペア:

[(1, 19167920), (2, 9583960), (4, 4791980), (5, 3833584), (8, 2395990), (10, 1916792), (16, 1197995), (20, 958396), (31, 618320), (40, 479198), (59, 324880), (62, 309160), (80, 239599), (118, 162440), (124, 154580), (131, 146320), (155, 123664), (236, 81220), (248, 77290), (262, 73160), (295, 64976), (310, 61832), (472, 40610), (496, 38645), (524, 36580), (590, 32488), (620, 30916), (655, 29264), (944, 20305), (1048, 18290), (1180, 16244), (1240, 15458), (1310, 14632), (1829, 10480), (2096, 9145), (2360, 8122), (2480, 7729), (2620, 7316), (3658, 5240), (4061, 4720)]