30203920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{641}}^1$

素因数の和:704

約数の個数: 80

約数和(自身を含む): 76423680

約数和(自身を除く): 46219760

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 38, 40, 62, 76, 80, 95, 124, 152, 155, 190, 248, 304, 310, 380, 496, 589, 620, 641, 760, 1178, 1240, 1282, 1520, 2356, 2480, 2564, 2945, 3205, 4712, 5128, 5890, 6410, 9424, 10256, 11780, 12179, 12820, 19871, 23560, 24358, 25640, 39742, 47120, 48716, 51280, 60895, 79484, 97432, 99355, 121790, 158968, 194864, 198710, 243580, 317936, 377549, 397420, 487160, 755098, 794840, 974320, 1510196, 1589680, 1887745, 3020392, 3775490, 6040784, 7550980, 15101960, 30203920]

約数ペア:

[(1, 30203920), (2, 15101960), (4, 7550980), (5, 6040784), (8, 3775490), (10, 3020392), (16, 1887745), (19, 1589680), (20, 1510196), (31, 974320), (38, 794840), (40, 755098), (62, 487160), (76, 397420), (80, 377549), (95, 317936), (124, 243580), (152, 198710), (155, 194864), (190, 158968), (248, 121790), (304, 99355), (310, 97432), (380, 79484), (496, 60895), (589, 51280), (620, 48716), (641, 47120), (760, 39742), (1178, 25640), (1240, 24358), (1282, 23560), (1520, 19871), (2356, 12820), (2480, 12179), (2564, 11780), (2945, 10256), (3205, 9424), (4712, 6410), (5128, 5890)]