55915020

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{223}}^1$

素因数の和:444

約数の個数: 144

約数和(自身を含む): 195686400

約数和(自身を除く): 139771380

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 199, 210, 223, 252, 315, 398, 420, 446, 597, 630, 669, 796, 892, 995, 1115, 1194, 1260, 1338, 1393, 1561, 1791, 1990, 2007, 2230, 2388, 2676, 2786, 2985, 3122, 3345, 3582, 3980, 4014, 4179, 4460, 4683, 5572, 5970, 6244, 6690, 6965, 7164, 7805, 8028, 8358, 8955, 9366, 10035, 11940, 12537, 13380, 13930, 14049, 15610, 16716, 17910, 18732, 20070, 20895, 23415, 25074, 27860, 28098, 31220, 35820, 40140, 41790, 44377, 46830, 50148, 56196, 62685, 70245, 83580, 88754, 93660, 125370, 133131, 140490, 177508, 221885, 250740, 266262, 280980, 310639, 399393, 443770, 532524, 621278, 665655, 798786, 887540, 931917, 1242556, 1331310, 1553195, 1597572, 1863834, 1996965, 2662620, 2795751, 3106390, 3727668, 3993930, 4659585, 5591502, 6212780, 7987860, 9319170, 11183004, 13978755, 18638340, 27957510, 55915020]

約数ペア:

[(1, 55915020), (2, 27957510), (3, 18638340), (4, 13978755), (5, 11183004), (6, 9319170), (7, 7987860), (9, 6212780), (10, 5591502), (12, 4659585), (14, 3993930), (15, 3727668), (18, 3106390), (20, 2795751), (21, 2662620), (28, 1996965), (30, 1863834), (35, 1597572), (36, 1553195), (42, 1331310), (45, 1242556), (60, 931917), (63, 887540), (70, 798786), (84, 665655), (90, 621278), (105, 532524), (126, 443770), (140, 399393), (180, 310639), (199, 280980), (210, 266262), (223, 250740), (252, 221885), (315, 177508), (398, 140490), (420, 133131), (446, 125370), (597, 93660), (630, 88754), (669, 83580), (796, 70245), (892, 62685), (995, 56196), (1115, 50148), (1194, 46830), (1260, 44377), (1338, 41790), (1393, 40140), (1561, 35820), (1791, 31220), (1990, 28098), (2007, 27860), (2230, 25074), (2388, 23415), (2676, 20895), (2786, 20070), (2985, 18732), (3122, 17910), (3345, 16716), (3582, 15610), (3980, 14049), (4014, 13930), (4179, 13380), (4460, 12537), (4683, 11940), (5572, 10035), (5970, 9366), (6244, 8955), (6690, 8358), (6965, 8028), (7164, 7805)]