72717560

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{587}}^1$

素因数の和:780

約数の個数: 64

約数和(自身を含む): 173577600

約数和(自身を除く): 100860040

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 163, 190, 326, 380, 587, 652, 760, 815, 1174, 1304, 1630, 2348, 2935, 3097, 3260, 4696, 5870, 6194, 6520, 11153, 11740, 12388, 15485, 22306, 23480, 24776, 30970, 44612, 55765, 61940, 89224, 95681, 111530, 123880, 191362, 223060, 382724, 446120, 478405, 765448, 956810, 1817939, 1913620, 3635878, 3827240, 7271756, 9089695, 14543512, 18179390, 36358780, 72717560]

約数ペア:

[(1, 72717560), (2, 36358780), (4, 18179390), (5, 14543512), (8, 9089695), (10, 7271756), (19, 3827240), (20, 3635878), (38, 1913620), (40, 1817939), (76, 956810), (95, 765448), (152, 478405), (163, 446120), (190, 382724), (326, 223060), (380, 191362), (587, 123880), (652, 111530), (760, 95681), (815, 89224), (1174, 61940), (1304, 55765), (1630, 44612), (2348, 30970), (2935, 24776), (3097, 23480), (3260, 22306), (4696, 15485), (5870, 12388), (6194, 11740), (6520, 11153)]