18237940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:209

約数の個数: 96

約数和(自身を含む): 47416320

約数和(自身を除く): 29178380

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 79, 85, 97, 119, 140, 158, 170, 194, 238, 316, 340, 388, 395, 476, 485, 553, 595, 679, 790, 970, 1106, 1190, 1343, 1358, 1580, 1649, 1940, 2212, 2380, 2686, 2716, 2765, 3298, 3395, 5372, 5530, 6596, 6715, 6790, 7663, 8245, 9401, 11060, 11543, 13430, 13580, 15326, 16490, 18802, 23086, 26860, 30652, 32980, 37604, 38315, 46172, 47005, 53641, 57715, 76630, 94010, 107282, 115430, 130271, 153260, 188020, 214564, 230860, 260542, 268205, 521084, 536410, 651355, 911897, 1072820, 1302710, 1823794, 2605420, 3647588, 4559485, 9118970, 18237940]

約数ペア:

[(1, 18237940), (2, 9118970), (4, 4559485), (5, 3647588), (7, 2605420), (10, 1823794), (14, 1302710), (17, 1072820), (20, 911897), (28, 651355), (34, 536410), (35, 521084), (68, 268205), (70, 260542), (79, 230860), (85, 214564), (97, 188020), (119, 153260), (140, 130271), (158, 115430), (170, 107282), (194, 94010), (238, 76630), (316, 57715), (340, 53641), (388, 47005), (395, 46172), (476, 38315), (485, 37604), (553, 32980), (595, 30652), (679, 26860), (790, 23086), (970, 18802), (1106, 16490), (1190, 15326), (1343, 13580), (1358, 13430), (1580, 11543), (1649, 11060), (1940, 9401), (2212, 8245), (2380, 7663), (2686, 6790), (2716, 6715), (2765, 6596), (3298, 5530), (3395, 5372)]