128003680

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{563}}^1$

素因数の和:621

約数の個数: 144

約数和(自身を含む): 364558320

約数和(自身を除く): 236554640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 32, 35, 40, 49, 56, 58, 70, 80, 98, 112, 116, 140, 145, 160, 196, 203, 224, 232, 245, 280, 290, 392, 406, 464, 490, 560, 563, 580, 784, 812, 928, 980, 1015, 1120, 1126, 1160, 1421, 1568, 1624, 1960, 2030, 2252, 2320, 2815, 2842, 3248, 3920, 3941, 4060, 4504, 4640, 5630, 5684, 6496, 7105, 7840, 7882, 8120, 9008, 11260, 11368, 14210, 15764, 16240, 16327, 18016, 19705, 22520, 22736, 27587, 28420, 31528, 32480, 32654, 39410, 45040, 45472, 55174, 56840, 63056, 65308, 78820, 81635, 90080, 110348, 113680, 114289, 126112, 130616, 137935, 157640, 163270, 220696, 227360, 228578, 261232, 275870, 315280, 326540, 441392, 457156, 522464, 551740, 571445, 630560, 653080, 800023, 882784, 914312, 1103480, 1142890, 1306160, 1600046, 1828624, 2206960, 2285780, 2612320, 3200092, 3657248, 4000115, 4413920, 4571560, 6400184, 8000230, 9143120, 12800368, 16000460, 18286240, 25600736, 32000920, 64001840, 128003680]

約数ペア:

[(1, 128003680), (2, 64001840), (4, 32000920), (5, 25600736), (7, 18286240), (8, 16000460), (10, 12800368), (14, 9143120), (16, 8000230), (20, 6400184), (28, 4571560), (29, 4413920), (32, 4000115), (35, 3657248), (40, 3200092), (49, 2612320), (56, 2285780), (58, 2206960), (70, 1828624), (80, 1600046), (98, 1306160), (112, 1142890), (116, 1103480), (140, 914312), (145, 882784), (160, 800023), (196, 653080), (203, 630560), (224, 571445), (232, 551740), (245, 522464), (280, 457156), (290, 441392), (392, 326540), (406, 315280), (464, 275870), (490, 261232), (560, 228578), (563, 227360), (580, 220696), (784, 163270), (812, 157640), (928, 137935), (980, 130616), (1015, 126112), (1120, 114289), (1126, 113680), (1160, 110348), (1421, 90080), (1568, 81635), (1624, 78820), (1960, 65308), (2030, 63056), (2252, 56840), (2320, 55174), (2815, 45472), (2842, 45040), (3248, 39410), (3920, 32654), (3941, 32480), (4060, 31528), (4504, 28420), (4640, 27587), (5630, 22736), (5684, 22520), (6496, 19705), (7105, 18016), (7840, 16327), (7882, 16240), (8120, 15764), (9008, 14210), (11260, 11368)]