18956970

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1151}}^1$

素因数の和:1228

約数の個数: 64

約数和(自身を含む): 51425280

約数和(自身を除く): 32468310

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, 1151, 1647, 1830, 2302, 2745, 3294, 3453, 5490, 5755, 6906, 8235, 10359, 11510, 16470, 17265, 20718, 31077, 34530, 51795, 62154, 70211, 103590, 140422, 155385, 210633, 310770, 351055, 421266, 631899, 702110, 1053165, 1263798, 1895697, 2106330, 3159495, 3791394, 6318990, 9478485, 18956970]

約数ペア:

[(1, 18956970), (2, 9478485), (3, 6318990), (5, 3791394), (6, 3159495), (9, 2106330), (10, 1895697), (15, 1263798), (18, 1053165), (27, 702110), (30, 631899), (45, 421266), (54, 351055), (61, 310770), (90, 210633), (122, 155385), (135, 140422), (183, 103590), (270, 70211), (305, 62154), (366, 51795), (549, 34530), (610, 31077), (915, 20718), (1098, 17265), (1151, 16470), (1647, 11510), (1830, 10359), (2302, 8235), (2745, 6906), (3294, 5755), (3453, 5490)]