213392840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{191}}^1$

素因数の和:303

約数の個数: 128

約数和(自身を含む): 537477120

約数和(自身を除く): 324084280

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 31, 34, 40, 53, 62, 68, 85, 106, 124, 136, 155, 170, 191, 212, 248, 265, 310, 340, 382, 424, 527, 530, 620, 680, 764, 901, 955, 1054, 1060, 1240, 1528, 1643, 1802, 1910, 2108, 2120, 2635, 3247, 3286, 3604, 3820, 4216, 4505, 5270, 5921, 6494, 6572, 7208, 7640, 8215, 9010, 10123, 10540, 11842, 12988, 13144, 16235, 16430, 18020, 20246, 21080, 23684, 25976, 27931, 29605, 32470, 32860, 36040, 40492, 47368, 50615, 55862, 59210, 64940, 65720, 80984, 100657, 101230, 111724, 118420, 129880, 139655, 172091, 201314, 202460, 223448, 236840, 279310, 313813, 344182, 402628, 404920, 503285, 558620, 627626, 688364, 805256, 860455, 1006570, 1117240, 1255252, 1376728, 1569065, 1720910, 2013140, 2510504, 3138130, 3441820, 4026280, 5334821, 6276260, 6883640, 10669642, 12552520, 21339284, 26674105, 42678568, 53348210, 106696420, 213392840]

約数ペア:

[(1, 213392840), (2, 106696420), (4, 53348210), (5, 42678568), (8, 26674105), (10, 21339284), (17, 12552520), (20, 10669642), (31, 6883640), (34, 6276260), (40, 5334821), (53, 4026280), (62, 3441820), (68, 3138130), (85, 2510504), (106, 2013140), (124, 1720910), (136, 1569065), (155, 1376728), (170, 1255252), (191, 1117240), (212, 1006570), (248, 860455), (265, 805256), (310, 688364), (340, 627626), (382, 558620), (424, 503285), (527, 404920), (530, 402628), (620, 344182), (680, 313813), (764, 279310), (901, 236840), (955, 223448), (1054, 202460), (1060, 201314), (1240, 172091), (1528, 139655), (1643, 129880), (1802, 118420), (1910, 111724), (2108, 101230), (2120, 100657), (2635, 80984), (3247, 65720), (3286, 64940), (3604, 59210), (3820, 55862), (4216, 50615), (4505, 47368), (5270, 40492), (5921, 36040), (6494, 32860), (6572, 32470), (7208, 29605), (7640, 27931), (8215, 25976), (9010, 23684), (10123, 21080), (10540, 20246), (11842, 18020), (12988, 16430), (13144, 16235)]