30742780

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1\times {\mathrm{223}}^1$

素因数の和:406

約数の個数: 48

約数和(自身を含む): 66495744

約数和(自身を除く): 35752964

約数列:

[1, 2, 4, 5, 10, 20, 61, 113, 122, 223, 226, 244, 305, 446, 452, 565, 610, 892, 1115, 1130, 1220, 2230, 2260, 4460, 6893, 13603, 13786, 25199, 27206, 27572, 34465, 50398, 54412, 68015, 68930, 100796, 125995, 136030, 137860, 251990, 272060, 503980, 1537139, 3074278, 6148556, 7685695, 15371390, 30742780]

約数ペア:

[(1, 30742780), (2, 15371390), (4, 7685695), (5, 6148556), (10, 3074278), (20, 1537139), (61, 503980), (113, 272060), (122, 251990), (223, 137860), (226, 136030), (244, 125995), (305, 100796), (446, 68930), (452, 68015), (565, 54412), (610, 50398), (892, 34465), (1115, 27572), (1130, 27206), (1220, 25199), (2230, 13786), (2260, 13603), (4460, 6893)]