213279280

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{156823}}^1$

素因数の和:156853

約数の個数: 40

約数和(自身を含む): 525046752

約数和(自身を除く): 311767472

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 156823, 313646, 627292, 784115, 1254584, 1568230, 2509168, 2665991, 3136460, 5331982, 6272920, 10663964, 12545840, 13329955, 21327928, 26659910, 42655856, 53319820, 106639640, 213279280]

約数ペア:

[(1, 213279280), (2, 106639640), (4, 53319820), (5, 42655856), (8, 26659910), (10, 21327928), (16, 13329955), (17, 12545840), (20, 10663964), (34, 6272920), (40, 5331982), (68, 3136460), (80, 2665991), (85, 2509168), (136, 1568230), (170, 1254584), (272, 784115), (340, 627292), (680, 313646), (1360, 156823)]