258140280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1\times {\mathrm{331}}^1$

素因数の和:509

約数の個数: 128

約数和(自身を含む): 796481280

約数和(自身を除く): 538341000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 67, 97, 120, 134, 194, 201, 268, 291, 331, 335, 388, 402, 485, 536, 582, 662, 670, 776, 804, 970, 993, 1005, 1164, 1324, 1340, 1455, 1608, 1655, 1940, 1986, 2010, 2328, 2648, 2680, 2910, 3310, 3880, 3972, 4020, 4965, 5820, 6499, 6620, 7944, 8040, 9930, 11640, 12998, 13240, 19497, 19860, 22177, 25996, 32107, 32495, 38994, 39720, 44354, 51992, 64214, 64990, 66531, 77988, 88708, 96321, 97485, 110885, 128428, 129980, 133062, 155976, 160535, 177416, 192642, 194970, 221770, 256856, 259960, 266124, 321070, 332655, 385284, 389940, 443540, 481605, 532248, 642140, 665310, 770568, 779880, 887080, 963210, 1284280, 1330620, 1926420, 2151169, 2661240, 3852840, 4302338, 6453507, 8604676, 10755845, 12907014, 17209352, 21511690, 25814028, 32267535, 43023380, 51628056, 64535070, 86046760, 129070140, 258140280]

約数ペア:

[(1, 258140280), (2, 129070140), (3, 86046760), (4, 64535070), (5, 51628056), (6, 43023380), (8, 32267535), (10, 25814028), (12, 21511690), (15, 17209352), (20, 12907014), (24, 10755845), (30, 8604676), (40, 6453507), (60, 4302338), (67, 3852840), (97, 2661240), (120, 2151169), (134, 1926420), (194, 1330620), (201, 1284280), (268, 963210), (291, 887080), (331, 779880), (335, 770568), (388, 665310), (402, 642140), (485, 532248), (536, 481605), (582, 443540), (662, 389940), (670, 385284), (776, 332655), (804, 321070), (970, 266124), (993, 259960), (1005, 256856), (1164, 221770), (1324, 194970), (1340, 192642), (1455, 177416), (1608, 160535), (1655, 155976), (1940, 133062), (1986, 129980), (2010, 128428), (2328, 110885), (2648, 97485), (2680, 96321), (2910, 88708), (3310, 77988), (3880, 66531), (3972, 64990), (4020, 64214), (4965, 51992), (5820, 44354), (6499, 39720), (6620, 38994), (7944, 32495), (8040, 32107), (9930, 25996), (11640, 22177), (12998, 19860), (13240, 19497)]