1819616580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{165721}}^1$

素因数の和:165797

約数の個数: 72

約数和(自身を含む): 5610021144

約数和(自身を除く): 3790404564

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, 1830, 2196, 2745, 3660, 5490, 10980, 165721, 331442, 497163, 662884, 828605, 994326, 1491489, 1657210, 1988652, 2485815, 2982978, 3314420, 4971630, 5965956, 7457445, 9943260, 10108981, 14914890, 20217962, 29829780, 30326943, 40435924, 50544905, 60653886, 90980829, 101089810, 121307772, 151634715, 181961658, 202179620, 303269430, 363923316, 454904145, 606538860, 909808290, 1819616580]

約数ペア:

[(1, 1819616580), (2, 909808290), (3, 606538860), (4, 454904145), (5, 363923316), (6, 303269430), (9, 202179620), (10, 181961658), (12, 151634715), (15, 121307772), (18, 101089810), (20, 90980829), (30, 60653886), (36, 50544905), (45, 40435924), (60, 30326943), (61, 29829780), (90, 20217962), (122, 14914890), (180, 10108981), (183, 9943260), (244, 7457445), (305, 5965956), (366, 4971630), (549, 3314420), (610, 2982978), (732, 2485815), (915, 1988652), (1098, 1657210), (1220, 1491489), (1830, 994326), (2196, 828605), (2745, 662884), (3660, 497163), (5490, 331442), (10980, 165721)]