19906470

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{29}}^2\times {\mathrm{263}}^1$

素因数の和:334

約数の個数: 72

約数和(自身を含む): 53806896

約数和(自身を除く): 33900426

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 29, 30, 45, 58, 87, 90, 145, 174, 261, 263, 290, 435, 522, 526, 789, 841, 870, 1305, 1315, 1578, 1682, 2367, 2523, 2610, 2630, 3945, 4205, 4734, 5046, 7569, 7627, 7890, 8410, 11835, 12615, 15138, 15254, 22881, 23670, 25230, 37845, 38135, 45762, 68643, 75690, 76270, 114405, 137286, 221183, 228810, 343215, 442366, 663549, 686430, 1105915, 1327098, 1990647, 2211830, 3317745, 3981294, 6635490, 9953235, 19906470]

約数ペア:

[(1, 19906470), (2, 9953235), (3, 6635490), (5, 3981294), (6, 3317745), (9, 2211830), (10, 1990647), (15, 1327098), (18, 1105915), (29, 686430), (30, 663549), (45, 442366), (58, 343215), (87, 228810), (90, 221183), (145, 137286), (174, 114405), (261, 76270), (263, 75690), (290, 68643), (435, 45762), (522, 38135), (526, 37845), (789, 25230), (841, 23670), (870, 22881), (1305, 15254), (1315, 15138), (1578, 12615), (1682, 11835), (2367, 8410), (2523, 7890), (2610, 7627), (2630, 7569), (3945, 5046), (4205, 4734)]