201820940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{263}}^1$

素因数の和:387

約数の個数: 96

約数和(自身を含む): 470219904

約数和(自身を除く): 268398964

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 37, 61, 68, 74, 85, 122, 148, 170, 185, 244, 263, 305, 340, 370, 526, 610, 629, 740, 1037, 1052, 1220, 1258, 1315, 2074, 2257, 2516, 2630, 3145, 4148, 4471, 4514, 5185, 5260, 6290, 8942, 9028, 9731, 10370, 11285, 12580, 16043, 17884, 19462, 20740, 22355, 22570, 32086, 38369, 38924, 44710, 45140, 48655, 64172, 76738, 80215, 89420, 97310, 153476, 160430, 165427, 191845, 194620, 272731, 320860, 330854, 383690, 545462, 593591, 661708, 767380, 827135, 1090924, 1187182, 1363655, 1654270, 2374364, 2727310, 2967955, 3308540, 5454620, 5935910, 10091047, 11871820, 20182094, 40364188, 50455235, 100910470, 201820940]

約数ペア:

[(1, 201820940), (2, 100910470), (4, 50455235), (5, 40364188), (10, 20182094), (17, 11871820), (20, 10091047), (34, 5935910), (37, 5454620), (61, 3308540), (68, 2967955), (74, 2727310), (85, 2374364), (122, 1654270), (148, 1363655), (170, 1187182), (185, 1090924), (244, 827135), (263, 767380), (305, 661708), (340, 593591), (370, 545462), (526, 383690), (610, 330854), (629, 320860), (740, 272731), (1037, 194620), (1052, 191845), (1220, 165427), (1258, 160430), (1315, 153476), (2074, 97310), (2257, 89420), (2516, 80215), (2630, 76738), (3145, 64172), (4148, 48655), (4471, 45140), (4514, 44710), (5185, 38924), (5260, 38369), (6290, 32086), (8942, 22570), (9028, 22355), (9731, 20740), (10370, 19462), (11285, 17884), (12580, 16043)]