398528200

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1$

素因数の和:248

約数の個数: 192

約数和(自身を含む): 1113678720

約数和(自身を除く): 715150520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 41, 50, 53, 56, 70, 82, 100, 106, 131, 140, 164, 175, 200, 205, 212, 262, 265, 280, 287, 328, 350, 371, 410, 424, 524, 530, 574, 655, 700, 742, 820, 917, 1025, 1048, 1060, 1148, 1310, 1325, 1400, 1435, 1484, 1640, 1834, 1855, 2050, 2120, 2173, 2296, 2620, 2650, 2870, 2968, 3275, 3668, 3710, 4100, 4346, 4585, 5240, 5300, 5371, 5740, 6550, 6943, 7175, 7336, 7420, 8200, 8692, 9170, 9275, 10600, 10742, 10865, 11480, 13100, 13886, 14350, 14840, 15211, 17384, 18340, 18550, 21484, 21730, 22925, 26200, 26855, 27772, 28700, 30422, 34715, 36680, 37100, 37597, 42968, 43460, 45850, 48601, 53710, 54325, 55544, 57400, 60844, 69430, 74200, 75194, 76055, 86920, 91700, 97202, 107420, 108650, 121688, 134275, 138860, 150388, 152110, 173575, 183400, 187985, 194404, 214840, 217300, 243005, 268550, 277720, 284663, 300776, 304220, 347150, 375970, 380275, 388808, 434600, 486010, 537100, 569326, 608440, 694300, 751940, 760550, 939925, 972020, 1074200, 1138652, 1215025, 1388600, 1423315, 1503880, 1521100, 1879850, 1944040, 1992641, 2277304, 2430050, 2846630, 3042200, 3759700, 3985282, 4860100, 5693260, 7116575, 7519400, 7970564, 9720200, 9963205, 11386520, 14233150, 15941128, 19926410, 28466300, 39852820, 49816025, 56932600, 79705640, 99632050, 199264100, 398528200]

約数ペア:

[(1, 398528200), (2, 199264100), (4, 99632050), (5, 79705640), (7, 56932600), (8, 49816025), (10, 39852820), (14, 28466300), (20, 19926410), (25, 15941128), (28, 14233150), (35, 11386520), (40, 9963205), (41, 9720200), (50, 7970564), (53, 7519400), (56, 7116575), (70, 5693260), (82, 4860100), (100, 3985282), (106, 3759700), (131, 3042200), (140, 2846630), (164, 2430050), (175, 2277304), (200, 1992641), (205, 1944040), (212, 1879850), (262, 1521100), (265, 1503880), (280, 1423315), (287, 1388600), (328, 1215025), (350, 1138652), (371, 1074200), (410, 972020), (424, 939925), (524, 760550), (530, 751940), (574, 694300), (655, 608440), (700, 569326), (742, 537100), (820, 486010), (917, 434600), (1025, 388808), (1048, 380275), (1060, 375970), (1148, 347150), (1310, 304220), (1325, 300776), (1400, 284663), (1435, 277720), (1484, 268550), (1640, 243005), (1834, 217300), (1855, 214840), (2050, 194404), (2120, 187985), (2173, 183400), (2296, 173575), (2620, 152110), (2650, 150388), (2870, 138860), (2968, 134275), (3275, 121688), (3668, 108650), (3710, 107420), (4100, 97202), (4346, 91700), (4585, 86920), (5240, 76055), (5300, 75194), (5371, 74200), (5740, 69430), (6550, 60844), (6943, 57400), (7175, 55544), (7336, 54325), (7420, 53710), (8200, 48601), (8692, 45850), (9170, 43460), (9275, 42968), (10600, 37597), (10742, 37100), (10865, 36680), (11480, 34715), (13100, 30422), (13886, 28700), (14350, 27772), (14840, 26855), (15211, 26200), (17384, 22925), (18340, 21730), (18550, 21484)]