18655020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1699}}^1$

素因数の和:1775

約数の個数: 72

約数和(自身を含む): 57548400

約数和(自身を除く): 38893380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 61, 90, 122, 180, 183, 244, 305, 366, 549, 610, 732, 915, 1098, 1220, 1699, 1830, 2196, 2745, 3398, 3660, 5097, 5490, 6796, 8495, 10194, 10980, 15291, 16990, 20388, 25485, 30582, 33980, 50970, 61164, 76455, 101940, 103639, 152910, 207278, 305820, 310917, 414556, 518195, 621834, 932751, 1036390, 1243668, 1554585, 1865502, 2072780, 3109170, 3731004, 4663755, 6218340, 9327510, 18655020]

約数ペア:

[(1, 18655020), (2, 9327510), (3, 6218340), (4, 4663755), (5, 3731004), (6, 3109170), (9, 2072780), (10, 1865502), (12, 1554585), (15, 1243668), (18, 1036390), (20, 932751), (30, 621834), (36, 518195), (45, 414556), (60, 310917), (61, 305820), (90, 207278), (122, 152910), (180, 103639), (183, 101940), (244, 76455), (305, 61164), (366, 50970), (549, 33980), (610, 30582), (732, 25485), (915, 20388), (1098, 16990), (1220, 15291), (1699, 10980), (1830, 10194), (2196, 8495), (2745, 6796), (3398, 5490), (3660, 5097)]