218976490

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{353}}^1$

素因数の和:507

約数の個数: 64

約数和(自身を含む): 433550880

約数和(自身を除く): 214574390

約数列:

[1, 2, 5, 10, 17, 34, 41, 82, 85, 89, 170, 178, 205, 353, 410, 445, 697, 706, 890, 1394, 1513, 1765, 3026, 3485, 3530, 3649, 6001, 6970, 7298, 7565, 12002, 14473, 15130, 18245, 28946, 30005, 31417, 36490, 60010, 62033, 62834, 72365, 124066, 144730, 157085, 246041, 310165, 314170, 492082, 534089, 620330, 1068178, 1230205, 1288097, 2460410, 2576194, 2670445, 5340890, 6440485, 12880970, 21897649, 43795298, 109488245, 218976490]

約数ペア:

[(1, 218976490), (2, 109488245), (5, 43795298), (10, 21897649), (17, 12880970), (34, 6440485), (41, 5340890), (82, 2670445), (85, 2576194), (89, 2460410), (170, 1288097), (178, 1230205), (205, 1068178), (353, 620330), (410, 534089), (445, 492082), (697, 314170), (706, 310165), (890, 246041), (1394, 157085), (1513, 144730), (1765, 124066), (3026, 72365), (3485, 62834), (3530, 62033), (3649, 60010), (6001, 36490), (6970, 31417), (7298, 30005), (7565, 28946), (12002, 18245), (14473, 15130)]