665734540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^3\times {\mathrm{23}}^1\times {\mathrm{211}}^1$

素因数の和:300

約数の個数: 96

約数和(自身を含む): 1547159040

約数和(自身を除く): 881424500

約数列:

[1, 2, 4, 5, 10, 19, 20, 23, 38, 46, 76, 92, 95, 115, 190, 211, 230, 361, 380, 422, 437, 460, 722, 844, 874, 1055, 1444, 1748, 1805, 2110, 2185, 3610, 4009, 4220, 4370, 4853, 6859, 7220, 8018, 8303, 8740, 9706, 13718, 16036, 16606, 19412, 20045, 24265, 27436, 33212, 34295, 40090, 41515, 48530, 68590, 76171, 80180, 83030, 92207, 97060, 137180, 152342, 157757, 166060, 184414, 304684, 315514, 368828, 380855, 461035, 631028, 761710, 788785, 922070, 1447249, 1523420, 1577570, 1751933, 1844140, 2894498, 3155140, 3503866, 5788996, 7007732, 7236245, 8759665, 14472490, 17519330, 28944980, 33286727, 35038660, 66573454, 133146908, 166433635, 332867270, 665734540]

約数ペア:

[(1, 665734540), (2, 332867270), (4, 166433635), (5, 133146908), (10, 66573454), (19, 35038660), (20, 33286727), (23, 28944980), (38, 17519330), (46, 14472490), (76, 8759665), (92, 7236245), (95, 7007732), (115, 5788996), (190, 3503866), (211, 3155140), (230, 2894498), (361, 1844140), (380, 1751933), (422, 1577570), (437, 1523420), (460, 1447249), (722, 922070), (844, 788785), (874, 761710), (1055, 631028), (1444, 461035), (1748, 380855), (1805, 368828), (2110, 315514), (2185, 304684), (3610, 184414), (4009, 166060), (4220, 157757), (4370, 152342), (4853, 137180), (6859, 97060), (7220, 92207), (8018, 83030), (8303, 80180), (8740, 76171), (9706, 68590), (13718, 48530), (16036, 41515), (16606, 40090), (19412, 34295), (20045, 33212), (24265, 27436)]