20600040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:187

約数の個数: 128

約数和(自身を含む): 65318400

約数和(自身を除く): 44718360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 41, 53, 60, 79, 82, 106, 120, 123, 158, 159, 164, 205, 212, 237, 246, 265, 316, 318, 328, 395, 410, 424, 474, 492, 530, 615, 632, 636, 790, 795, 820, 948, 984, 1060, 1185, 1230, 1272, 1580, 1590, 1640, 1896, 2120, 2173, 2370, 2460, 3160, 3180, 3239, 4187, 4346, 4740, 4920, 6360, 6478, 6519, 8374, 8692, 9480, 9717, 10865, 12561, 12956, 13038, 16195, 16748, 17384, 19434, 20935, 21730, 25122, 25912, 26076, 32390, 32595, 33496, 38868, 41870, 43460, 48585, 50244, 52152, 62805, 64780, 65190, 77736, 83740, 86920, 97170, 100488, 125610, 129560, 130380, 167480, 171667, 194340, 251220, 260760, 343334, 388680, 502440, 515001, 686668, 858335, 1030002, 1373336, 1716670, 2060004, 2575005, 3433340, 4120008, 5150010, 6866680, 10300020, 20600040]

約数ペア:

[(1, 20600040), (2, 10300020), (3, 6866680), (4, 5150010), (5, 4120008), (6, 3433340), (8, 2575005), (10, 2060004), (12, 1716670), (15, 1373336), (20, 1030002), (24, 858335), (30, 686668), (40, 515001), (41, 502440), (53, 388680), (60, 343334), (79, 260760), (82, 251220), (106, 194340), (120, 171667), (123, 167480), (158, 130380), (159, 129560), (164, 125610), (205, 100488), (212, 97170), (237, 86920), (246, 83740), (265, 77736), (316, 65190), (318, 64780), (328, 62805), (395, 52152), (410, 50244), (424, 48585), (474, 43460), (492, 41870), (530, 38868), (615, 33496), (632, 32595), (636, 32390), (790, 26076), (795, 25912), (820, 25122), (948, 21730), (984, 20935), (1060, 19434), (1185, 17384), (1230, 16748), (1272, 16195), (1580, 13038), (1590, 12956), (1640, 12561), (1896, 10865), (2120, 9717), (2173, 9480), (2370, 8692), (2460, 8374), (3160, 6519), (3180, 6478), (3239, 6360), (4187, 4920), (4346, 4740)]