20180280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{167}}^1$

素因数の和:253

約数の個数: 128

約数和(自身を含む): 65318400

約数和(自身を除く): 45138120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 53, 57, 60, 76, 95, 106, 114, 120, 152, 159, 167, 190, 212, 228, 265, 285, 318, 334, 380, 424, 456, 501, 530, 570, 636, 668, 760, 795, 835, 1002, 1007, 1060, 1140, 1272, 1336, 1590, 1670, 2004, 2014, 2120, 2280, 2505, 3021, 3173, 3180, 3340, 4008, 4028, 5010, 5035, 6042, 6346, 6360, 6680, 8056, 8851, 9519, 10020, 10070, 12084, 12692, 15105, 15865, 17702, 19038, 20040, 20140, 24168, 25384, 26553, 30210, 31730, 35404, 38076, 40280, 44255, 47595, 53106, 60420, 63460, 70808, 76152, 88510, 95190, 106212, 120840, 126920, 132765, 168169, 177020, 190380, 212424, 265530, 336338, 354040, 380760, 504507, 531060, 672676, 840845, 1009014, 1062120, 1345352, 1681690, 2018028, 2522535, 3363380, 4036056, 5045070, 6726760, 10090140, 20180280]

約数ペア:

[(1, 20180280), (2, 10090140), (3, 6726760), (4, 5045070), (5, 4036056), (6, 3363380), (8, 2522535), (10, 2018028), (12, 1681690), (15, 1345352), (19, 1062120), (20, 1009014), (24, 840845), (30, 672676), (38, 531060), (40, 504507), (53, 380760), (57, 354040), (60, 336338), (76, 265530), (95, 212424), (106, 190380), (114, 177020), (120, 168169), (152, 132765), (159, 126920), (167, 120840), (190, 106212), (212, 95190), (228, 88510), (265, 76152), (285, 70808), (318, 63460), (334, 60420), (380, 53106), (424, 47595), (456, 44255), (501, 40280), (530, 38076), (570, 35404), (636, 31730), (668, 30210), (760, 26553), (795, 25384), (835, 24168), (1002, 20140), (1007, 20040), (1060, 19038), (1140, 17702), (1272, 15865), (1336, 15105), (1590, 12692), (1670, 12084), (2004, 10070), (2014, 10020), (2120, 9519), (2280, 8851), (2505, 8056), (3021, 6680), (3173, 6360), (3180, 6346), (3340, 6042), (4008, 5035), (4028, 5010)]