18896580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1721}}^1$

素因数の和:1797

約数の個数: 72

約数和(自身を含む): 58293144

約数和(自身を除く): 39396564

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, 1721, 1830, 2196, 2745, 3442, 3660, 5163, 5490, 6884, 8605, 10326, 10980, 15489, 17210, 20652, 25815, 30978, 34420, 51630, 61956, 77445, 103260, 104981, 154890, 209962, 309780, 314943, 419924, 524905, 629886, 944829, 1049810, 1259772, 1574715, 1889658, 2099620, 3149430, 3779316, 4724145, 6298860, 9448290, 18896580]

約数ペア:

[(1, 18896580), (2, 9448290), (3, 6298860), (4, 4724145), (5, 3779316), (6, 3149430), (9, 2099620), (10, 1889658), (12, 1574715), (15, 1259772), (18, 1049810), (20, 944829), (30, 629886), (36, 524905), (45, 419924), (60, 314943), (61, 309780), (90, 209962), (122, 154890), (180, 104981), (183, 103260), (244, 77445), (305, 61956), (366, 51630), (549, 34420), (610, 30978), (732, 25815), (915, 20652), (1098, 17210), (1220, 15489), (1721, 10980), (1830, 10326), (2196, 8605), (2745, 6884), (3442, 5490), (3660, 5163)]