20744580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{587}}^1$

素因数の和:649

約数の個数: 96

約数和(自身を含む): 63221760

約数和(自身を除く): 42477180

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 31, 38, 57, 60, 62, 76, 93, 95, 114, 124, 155, 186, 190, 228, 285, 310, 372, 380, 465, 570, 587, 589, 620, 930, 1140, 1174, 1178, 1761, 1767, 1860, 2348, 2356, 2935, 2945, 3522, 3534, 5870, 5890, 7044, 7068, 8805, 8835, 11153, 11740, 11780, 17610, 17670, 18197, 22306, 33459, 35220, 35340, 36394, 44612, 54591, 55765, 66918, 72788, 90985, 109182, 111530, 133836, 167295, 181970, 218364, 223060, 272955, 334590, 345743, 363940, 545910, 669180, 691486, 1037229, 1091820, 1382972, 1728715, 2074458, 3457430, 4148916, 5186145, 6914860, 10372290, 20744580]

約数ペア:

[(1, 20744580), (2, 10372290), (3, 6914860), (4, 5186145), (5, 4148916), (6, 3457430), (10, 2074458), (12, 1728715), (15, 1382972), (19, 1091820), (20, 1037229), (30, 691486), (31, 669180), (38, 545910), (57, 363940), (60, 345743), (62, 334590), (76, 272955), (93, 223060), (95, 218364), (114, 181970), (124, 167295), (155, 133836), (186, 111530), (190, 109182), (228, 90985), (285, 72788), (310, 66918), (372, 55765), (380, 54591), (465, 44612), (570, 36394), (587, 35340), (589, 35220), (620, 33459), (930, 22306), (1140, 18197), (1174, 17670), (1178, 17610), (1761, 11780), (1767, 11740), (1860, 11153), (2348, 8835), (2356, 8805), (2935, 7068), (2945, 7044), (3522, 5890), (3534, 5870)]