51240340

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{47}}^1\times {\mathrm{151}}^1$

素因数の和:245

約数の個数: 72

約数和(自身を含む): 116750592

約数和(自身を除く): 65510252

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 47, 76, 94, 95, 151, 188, 190, 235, 302, 361, 380, 470, 604, 722, 755, 893, 940, 1444, 1510, 1786, 1805, 2869, 3020, 3572, 3610, 4465, 5738, 7097, 7220, 8930, 11476, 14194, 14345, 16967, 17860, 28388, 28690, 33934, 35485, 54511, 57380, 67868, 70970, 84835, 109022, 134843, 141940, 169670, 218044, 269686, 272555, 339340, 539372, 545110, 674215, 1090220, 1348430, 2562017, 2696860, 5124034, 10248068, 12810085, 25620170, 51240340]

約数ペア:

[(1, 51240340), (2, 25620170), (4, 12810085), (5, 10248068), (10, 5124034), (19, 2696860), (20, 2562017), (38, 1348430), (47, 1090220), (76, 674215), (94, 545110), (95, 539372), (151, 339340), (188, 272555), (190, 269686), (235, 218044), (302, 169670), (361, 141940), (380, 134843), (470, 109022), (604, 84835), (722, 70970), (755, 67868), (893, 57380), (940, 54511), (1444, 35485), (1510, 33934), (1786, 28690), (1805, 28388), (2869, 17860), (3020, 16967), (3572, 14345), (3610, 14194), (4465, 11476), (5738, 8930), (7097, 7220)]