210298840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{397}}^1$

素因数の和:485

約数の個数: 128

約数和(自身を含む): 541598400

約数和(自身を除く): 331299560

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 41, 68, 76, 82, 85, 95, 136, 152, 164, 170, 190, 205, 323, 328, 340, 380, 397, 410, 646, 680, 697, 760, 779, 794, 820, 1292, 1394, 1558, 1588, 1615, 1640, 1985, 2584, 2788, 3116, 3176, 3230, 3485, 3895, 3970, 5576, 6232, 6460, 6749, 6970, 7543, 7790, 7940, 12920, 13243, 13498, 13940, 15086, 15580, 15880, 16277, 26486, 26996, 27880, 30172, 31160, 32554, 33745, 37715, 52972, 53992, 60344, 65108, 66215, 67490, 75430, 81385, 105944, 128231, 130216, 132430, 134980, 150860, 162770, 256462, 264860, 269960, 276709, 301720, 309263, 325540, 512924, 529720, 553418, 618526, 641155, 651080, 1025848, 1106836, 1237052, 1282310, 1383545, 1546315, 2213672, 2474104, 2564620, 2767090, 3092630, 5129240, 5257471, 5534180, 6185260, 10514942, 11068360, 12370520, 21029884, 26287355, 42059768, 52574710, 105149420, 210298840]

約数ペア:

[(1, 210298840), (2, 105149420), (4, 52574710), (5, 42059768), (8, 26287355), (10, 21029884), (17, 12370520), (19, 11068360), (20, 10514942), (34, 6185260), (38, 5534180), (40, 5257471), (41, 5129240), (68, 3092630), (76, 2767090), (82, 2564620), (85, 2474104), (95, 2213672), (136, 1546315), (152, 1383545), (164, 1282310), (170, 1237052), (190, 1106836), (205, 1025848), (323, 651080), (328, 641155), (340, 618526), (380, 553418), (397, 529720), (410, 512924), (646, 325540), (680, 309263), (697, 301720), (760, 276709), (779, 269960), (794, 264860), (820, 256462), (1292, 162770), (1394, 150860), (1558, 134980), (1588, 132430), (1615, 130216), (1640, 128231), (1985, 105944), (2584, 81385), (2788, 75430), (3116, 67490), (3176, 66215), (3230, 65108), (3485, 60344), (3895, 53992), (3970, 52972), (5576, 37715), (6232, 33745), (6460, 32554), (6749, 31160), (6970, 30172), (7543, 27880), (7790, 26996), (7940, 26486), (12920, 16277), (13243, 15880), (13498, 15580), (13940, 15086)]