19780470

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1201}}^1$

素因数の和:1278

約数の個数: 64

約数和(自身を含む): 53657280

約数和(自身を除く): 33876810

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 61, 90, 122, 135, 183, 270, 305, 366, 549, 610, 915, 1098, 1201, 1647, 1830, 2402, 2745, 3294, 3603, 5490, 6005, 7206, 8235, 10809, 12010, 16470, 18015, 21618, 32427, 36030, 54045, 64854, 73261, 108090, 146522, 162135, 219783, 324270, 366305, 439566, 659349, 732610, 1098915, 1318698, 1978047, 2197830, 3296745, 3956094, 6593490, 9890235, 19780470]

約数ペア:

[(1, 19780470), (2, 9890235), (3, 6593490), (5, 3956094), (6, 3296745), (9, 2197830), (10, 1978047), (15, 1318698), (18, 1098915), (27, 732610), (30, 659349), (45, 439566), (54, 366305), (61, 324270), (90, 219783), (122, 162135), (135, 146522), (183, 108090), (270, 73261), (305, 64854), (366, 54045), (549, 36030), (610, 32427), (915, 21618), (1098, 18015), (1201, 16470), (1647, 12010), (1830, 10809), (2402, 8235), (2745, 7206), (3294, 6005), (3603, 5490)]