210059720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:295

約数の個数: 128

約数和(自身を含む): 535127040

約数和(自身を除く): 325067320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 83, 104, 124, 130, 155, 157, 166, 248, 260, 310, 314, 332, 403, 415, 520, 620, 628, 664, 785, 806, 830, 1079, 1240, 1256, 1570, 1612, 1660, 2015, 2041, 2158, 2573, 3140, 3224, 3320, 4030, 4082, 4316, 4867, 5146, 5395, 6280, 8060, 8164, 8632, 9734, 10205, 10292, 10790, 12865, 13031, 16120, 16328, 19468, 20410, 20584, 21580, 24335, 25730, 26062, 33449, 38936, 40820, 43160, 48670, 51460, 52124, 63271, 65155, 66898, 81640, 97340, 102920, 104248, 126542, 130310, 133796, 167245, 169403, 194680, 253084, 260620, 267592, 316355, 334490, 338806, 403961, 506168, 521240, 632710, 668980, 677612, 807922, 847015, 1265420, 1337960, 1355224, 1615844, 1694030, 2019805, 2530840, 3231688, 3388060, 4039610, 5251493, 6776120, 8079220, 10502986, 16158440, 21005972, 26257465, 42011944, 52514930, 105029860, 210059720]

約数ペア:

[(1, 210059720), (2, 105029860), (4, 52514930), (5, 42011944), (8, 26257465), (10, 21005972), (13, 16158440), (20, 10502986), (26, 8079220), (31, 6776120), (40, 5251493), (52, 4039610), (62, 3388060), (65, 3231688), (83, 2530840), (104, 2019805), (124, 1694030), (130, 1615844), (155, 1355224), (157, 1337960), (166, 1265420), (248, 847015), (260, 807922), (310, 677612), (314, 668980), (332, 632710), (403, 521240), (415, 506168), (520, 403961), (620, 338806), (628, 334490), (664, 316355), (785, 267592), (806, 260620), (830, 253084), (1079, 194680), (1240, 169403), (1256, 167245), (1570, 133796), (1612, 130310), (1660, 126542), (2015, 104248), (2041, 102920), (2158, 97340), (2573, 81640), (3140, 66898), (3224, 65155), (3320, 63271), (4030, 52124), (4082, 51460), (4316, 48670), (4867, 43160), (5146, 40820), (5395, 38936), (6280, 33449), (8060, 26062), (8164, 25730), (8632, 24335), (9734, 21580), (10205, 20584), (10292, 20410), (10790, 19468), (12865, 16328), (13031, 16120)]