20290430

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:165

約数の個数: 64

約数和(自身を含む): 40711680

約数和(自身を除く): 20421250

約数列:

[1, 2, 5, 10, 29, 31, 37, 58, 61, 62, 74, 122, 145, 155, 185, 290, 305, 310, 370, 610, 899, 1073, 1147, 1769, 1798, 1891, 2146, 2257, 2294, 3538, 3782, 4495, 4514, 5365, 5735, 8845, 8990, 9455, 10730, 11285, 11470, 17690, 18910, 22570, 33263, 54839, 65453, 66526, 69967, 109678, 130906, 139934, 166315, 274195, 327265, 332630, 349835, 548390, 654530, 699670, 2029043, 4058086, 10145215, 20290430]

約数ペア:

[(1, 20290430), (2, 10145215), (5, 4058086), (10, 2029043), (29, 699670), (31, 654530), (37, 548390), (58, 349835), (61, 332630), (62, 327265), (74, 274195), (122, 166315), (145, 139934), (155, 130906), (185, 109678), (290, 69967), (305, 66526), (310, 65453), (370, 54839), (610, 33263), (899, 22570), (1073, 18910), (1147, 17690), (1769, 11470), (1798, 11285), (1891, 10730), (2146, 9455), (2257, 8990), (2294, 8845), (3538, 5735), (3782, 5365), (4495, 4514)]