138974280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1171}}^1$

素因数の和:1251

約数の個数: 128

約数和(自身を含む): 445547520

約数和(自身を除く): 306573240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 43, 46, 60, 69, 86, 92, 115, 120, 129, 138, 172, 184, 215, 230, 258, 276, 344, 345, 430, 460, 516, 552, 645, 690, 860, 920, 989, 1032, 1171, 1290, 1380, 1720, 1978, 2342, 2580, 2760, 2967, 3513, 3956, 4684, 4945, 5160, 5855, 5934, 7026, 7912, 9368, 9890, 11710, 11868, 14052, 14835, 17565, 19780, 23420, 23736, 26933, 28104, 29670, 35130, 39560, 46840, 50353, 53866, 59340, 70260, 80799, 100706, 107732, 118680, 134665, 140520, 151059, 161598, 201412, 215464, 251765, 269330, 302118, 323196, 402824, 403995, 503530, 538660, 604236, 646392, 755295, 807990, 1007060, 1077320, 1158119, 1208472, 1510590, 1615980, 2014120, 2316238, 3021180, 3231960, 3474357, 4632476, 5790595, 6042360, 6948714, 9264952, 11581190, 13897428, 17371785, 23162380, 27794856, 34743570, 46324760, 69487140, 138974280]

約数ペア:

[(1, 138974280), (2, 69487140), (3, 46324760), (4, 34743570), (5, 27794856), (6, 23162380), (8, 17371785), (10, 13897428), (12, 11581190), (15, 9264952), (20, 6948714), (23, 6042360), (24, 5790595), (30, 4632476), (40, 3474357), (43, 3231960), (46, 3021180), (60, 2316238), (69, 2014120), (86, 1615980), (92, 1510590), (115, 1208472), (120, 1158119), (129, 1077320), (138, 1007060), (172, 807990), (184, 755295), (215, 646392), (230, 604236), (258, 538660), (276, 503530), (344, 403995), (345, 402824), (430, 323196), (460, 302118), (516, 269330), (552, 251765), (645, 215464), (690, 201412), (860, 161598), (920, 151059), (989, 140520), (1032, 134665), (1171, 118680), (1290, 107732), (1380, 100706), (1720, 80799), (1978, 70260), (2342, 59340), (2580, 53866), (2760, 50353), (2967, 46840), (3513, 39560), (3956, 35130), (4684, 29670), (4945, 28104), (5160, 26933), (5855, 23736), (5934, 23420), (7026, 19780), (7912, 17565), (9368, 14835), (9890, 14052), (11710, 11868)]