128703400

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{571}}^1$

素因数の和:624

約数の個数: 144

約数和(自身を含む): 363860640

約数和(自身を除く): 235157240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 25, 28, 35, 40, 46, 49, 50, 56, 70, 92, 98, 100, 115, 140, 161, 175, 184, 196, 200, 230, 245, 280, 322, 350, 392, 460, 490, 571, 575, 644, 700, 805, 920, 980, 1127, 1142, 1150, 1225, 1288, 1400, 1610, 1960, 2254, 2284, 2300, 2450, 2855, 3220, 3997, 4025, 4508, 4568, 4600, 4900, 5635, 5710, 6440, 7994, 8050, 9016, 9800, 11270, 11420, 13133, 14275, 15988, 16100, 19985, 22540, 22840, 26266, 27979, 28175, 28550, 31976, 32200, 39970, 45080, 52532, 55958, 56350, 57100, 65665, 79940, 91931, 99925, 105064, 111916, 112700, 114200, 131330, 139895, 159880, 183862, 199850, 223832, 225400, 262660, 279790, 328325, 367724, 399700, 459655, 525320, 559580, 643517, 656650, 699475, 735448, 799400, 919310, 1119160, 1287034, 1313300, 1398950, 1838620, 2298275, 2574068, 2626600, 2797900, 3217585, 3677240, 4596550, 5148136, 5595800, 6435170, 9193100, 12870340, 16087925, 18386200, 25740680, 32175850, 64351700, 128703400]

約数ペア:

[(1, 128703400), (2, 64351700), (4, 32175850), (5, 25740680), (7, 18386200), (8, 16087925), (10, 12870340), (14, 9193100), (20, 6435170), (23, 5595800), (25, 5148136), (28, 4596550), (35, 3677240), (40, 3217585), (46, 2797900), (49, 2626600), (50, 2574068), (56, 2298275), (70, 1838620), (92, 1398950), (98, 1313300), (100, 1287034), (115, 1119160), (140, 919310), (161, 799400), (175, 735448), (184, 699475), (196, 656650), (200, 643517), (230, 559580), (245, 525320), (280, 459655), (322, 399700), (350, 367724), (392, 328325), (460, 279790), (490, 262660), (571, 225400), (575, 223832), (644, 199850), (700, 183862), (805, 159880), (920, 139895), (980, 131330), (1127, 114200), (1142, 112700), (1150, 111916), (1225, 105064), (1288, 99925), (1400, 91931), (1610, 79940), (1960, 65665), (2254, 57100), (2284, 56350), (2300, 55958), (2450, 52532), (2855, 45080), (3220, 39970), (3997, 32200), (4025, 31976), (4508, 28550), (4568, 28175), (4600, 27979), (4900, 26266), (5635, 22840), (5710, 22540), (6440, 19985), (7994, 16100), (8050, 15988), (9016, 14275), (9800, 13133), (11270, 11420)]