254291220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1\times {\mathrm{257}}^1$

素因数の和:534

約数の個数: 144

約数和(自身を含む): 811399680

約数和(自身を除く): 557108460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 239, 257, 276, 345, 414, 460, 478, 514, 690, 717, 771, 828, 956, 1028, 1035, 1195, 1285, 1380, 1434, 1542, 2070, 2151, 2313, 2390, 2570, 2868, 3084, 3585, 3855, 4140, 4302, 4626, 4780, 5140, 5497, 5911, 7170, 7710, 8604, 9252, 10755, 10994, 11565, 11822, 14340, 15420, 16491, 17733, 21510, 21988, 23130, 23644, 27485, 29555, 32982, 35466, 43020, 46260, 49473, 53199, 54970, 59110, 61423, 65964, 70932, 82455, 88665, 98946, 106398, 109940, 118220, 122846, 164910, 177330, 184269, 197892, 212796, 245692, 247365, 265995, 307115, 329820, 354660, 368538, 494730, 531990, 552807, 614230, 737076, 921345, 989460, 1063980, 1105614, 1228460, 1412729, 1842690, 2211228, 2764035, 2825458, 3685380, 4238187, 5528070, 5650916, 7063645, 8476374, 11056140, 12714561, 14127290, 16952748, 21190935, 25429122, 28254580, 42381870, 50858244, 63572805, 84763740, 127145610, 254291220]

約数ペア:

[(1, 254291220), (2, 127145610), (3, 84763740), (4, 63572805), (5, 50858244), (6, 42381870), (9, 28254580), (10, 25429122), (12, 21190935), (15, 16952748), (18, 14127290), (20, 12714561), (23, 11056140), (30, 8476374), (36, 7063645), (45, 5650916), (46, 5528070), (60, 4238187), (69, 3685380), (90, 2825458), (92, 2764035), (115, 2211228), (138, 1842690), (180, 1412729), (207, 1228460), (230, 1105614), (239, 1063980), (257, 989460), (276, 921345), (345, 737076), (414, 614230), (460, 552807), (478, 531990), (514, 494730), (690, 368538), (717, 354660), (771, 329820), (828, 307115), (956, 265995), (1028, 247365), (1035, 245692), (1195, 212796), (1285, 197892), (1380, 184269), (1434, 177330), (1542, 164910), (2070, 122846), (2151, 118220), (2313, 109940), (2390, 106398), (2570, 98946), (2868, 88665), (3084, 82455), (3585, 70932), (3855, 65964), (4140, 61423), (4302, 59110), (4626, 54970), (4780, 53199), (5140, 49473), (5497, 46260), (5911, 43020), (7170, 35466), (7710, 32982), (8604, 29555), (9252, 27485), (10755, 23644), (10994, 23130), (11565, 21988), (11822, 21510), (14340, 17733), (15420, 16491)]