28231720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{307}}^1$

素因数の和:359

約数の個数: 96

約数和(自身を含む): 73735200

約数和(自身を除く): 45503480

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 76, 88, 95, 110, 121, 152, 190, 209, 220, 242, 307, 380, 418, 440, 484, 605, 614, 760, 836, 968, 1045, 1210, 1228, 1535, 1672, 2090, 2299, 2420, 2456, 3070, 3377, 4180, 4598, 4840, 5833, 6140, 6754, 8360, 9196, 11495, 11666, 12280, 13508, 16885, 18392, 22990, 23332, 27016, 29165, 33770, 37147, 45980, 46664, 58330, 64163, 67540, 74294, 91960, 116660, 128326, 135080, 148588, 185735, 233320, 256652, 297176, 320815, 371470, 513304, 641630, 705793, 742940, 1283260, 1411586, 1485880, 2566520, 2823172, 3528965, 5646344, 7057930, 14115860, 28231720]

約数ペア:

[(1, 28231720), (2, 14115860), (4, 7057930), (5, 5646344), (8, 3528965), (10, 2823172), (11, 2566520), (19, 1485880), (20, 1411586), (22, 1283260), (38, 742940), (40, 705793), (44, 641630), (55, 513304), (76, 371470), (88, 320815), (95, 297176), (110, 256652), (121, 233320), (152, 185735), (190, 148588), (209, 135080), (220, 128326), (242, 116660), (307, 91960), (380, 74294), (418, 67540), (440, 64163), (484, 58330), (605, 46664), (614, 45980), (760, 37147), (836, 33770), (968, 29165), (1045, 27016), (1210, 23332), (1228, 22990), (1535, 18392), (1672, 16885), (2090, 13508), (2299, 12280), (2420, 11666), (2456, 11495), (3070, 9196), (3377, 8360), (4180, 6754), (4598, 6140), (4840, 5833)]