65647980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{157}}^1$

素因数の和:296

約数の個数: 144

約数和(自身を含む): 211184064

約数和(自身を除く): 145536084

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 101, 115, 138, 157, 180, 202, 207, 230, 276, 303, 314, 345, 404, 414, 460, 471, 505, 606, 628, 690, 785, 828, 909, 942, 1010, 1035, 1212, 1380, 1413, 1515, 1570, 1818, 1884, 2020, 2070, 2323, 2355, 2826, 3030, 3140, 3611, 3636, 4140, 4545, 4646, 4710, 5652, 6060, 6969, 7065, 7222, 9090, 9292, 9420, 10833, 11615, 13938, 14130, 14444, 15857, 18055, 18180, 20907, 21666, 23230, 27876, 28260, 31714, 32499, 34845, 36110, 41814, 43332, 46460, 47571, 54165, 63428, 64998, 69690, 72220, 79285, 83628, 95142, 104535, 108330, 129996, 139380, 142713, 158570, 162495, 190284, 209070, 216660, 237855, 285426, 317140, 324990, 364711, 418140, 475710, 570852, 649980, 713565, 729422, 951420, 1094133, 1427130, 1458844, 1823555, 2188266, 2854260, 3282399, 3647110, 4376532, 5470665, 6564798, 7294220, 10941330, 13129596, 16411995, 21882660, 32823990, 65647980]

約数ペア:

[(1, 65647980), (2, 32823990), (3, 21882660), (4, 16411995), (5, 13129596), (6, 10941330), (9, 7294220), (10, 6564798), (12, 5470665), (15, 4376532), (18, 3647110), (20, 3282399), (23, 2854260), (30, 2188266), (36, 1823555), (45, 1458844), (46, 1427130), (60, 1094133), (69, 951420), (90, 729422), (92, 713565), (101, 649980), (115, 570852), (138, 475710), (157, 418140), (180, 364711), (202, 324990), (207, 317140), (230, 285426), (276, 237855), (303, 216660), (314, 209070), (345, 190284), (404, 162495), (414, 158570), (460, 142713), (471, 139380), (505, 129996), (606, 108330), (628, 104535), (690, 95142), (785, 83628), (828, 79285), (909, 72220), (942, 69690), (1010, 64998), (1035, 63428), (1212, 54165), (1380, 47571), (1413, 46460), (1515, 43332), (1570, 41814), (1818, 36110), (1884, 34845), (2020, 32499), (2070, 31714), (2323, 28260), (2355, 27876), (2826, 23230), (3030, 21666), (3140, 20907), (3611, 18180), (3636, 18055), (4140, 15857), (4545, 14444), (4646, 14130), (4710, 13938), (5652, 11615), (6060, 10833), (6969, 9420), (7065, 9292), (7222, 9090)]