30672020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{811}}^1$

素因数の和:912

約数の個数: 48

約数和(自身を含む): 67662336

約数和(自身を除く): 36990316

約数列:

[1, 2, 4, 5, 10, 20, 31, 61, 62, 122, 124, 155, 244, 305, 310, 610, 620, 811, 1220, 1622, 1891, 3244, 3782, 4055, 7564, 8110, 9455, 16220, 18910, 25141, 37820, 49471, 50282, 98942, 100564, 125705, 197884, 247355, 251410, 494710, 502820, 989420, 1533601, 3067202, 6134404, 7668005, 15336010, 30672020]

約数ペア:

[(1, 30672020), (2, 15336010), (4, 7668005), (5, 6134404), (10, 3067202), (20, 1533601), (31, 989420), (61, 502820), (62, 494710), (122, 251410), (124, 247355), (155, 197884), (244, 125705), (305, 100564), (310, 98942), (610, 50282), (620, 49471), (811, 37820), (1220, 25141), (1622, 18910), (1891, 16220), (3244, 9455), (3782, 8110), (4055, 7564)]