395460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^3$

素因数の和:54

約数の個数: 72

約数和(自身を含む): 1299480

約数和(自身を除く): 904020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 169, 180, 195, 234, 260, 338, 390, 468, 507, 585, 676, 780, 845, 1014, 1170, 1521, 1690, 2028, 2197, 2340, 2535, 3042, 3380, 4394, 5070, 6084, 6591, 7605, 8788, 10140, 10985, 13182, 15210, 19773, 21970, 26364, 30420, 32955, 39546, 43940, 65910, 79092, 98865, 131820, 197730, 395460]

約数ペア:

[(1, 395460), (2, 197730), (3, 131820), (4, 98865), (5, 79092), (6, 65910), (9, 43940), (10, 39546), (12, 32955), (13, 30420), (15, 26364), (18, 21970), (20, 19773), (26, 15210), (30, 13182), (36, 10985), (39, 10140), (45, 8788), (52, 7605), (60, 6591), (65, 6084), (78, 5070), (90, 4394), (117, 3380), (130, 3042), (156, 2535), (169, 2340), (180, 2197), (195, 2028), (234, 1690), (260, 1521), (338, 1170), (390, 1014), (468, 845), (507, 780), (585, 676)]