128680020

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{1399}}^1$

素因数の和:1494

約数の個数: 144

約数和(自身を含む): 452524800

約数和(自身を除く): 323844780

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 73, 84, 90, 105, 126, 140, 146, 180, 210, 219, 252, 292, 315, 365, 420, 438, 511, 630, 657, 730, 876, 1022, 1095, 1260, 1314, 1399, 1460, 1533, 2044, 2190, 2555, 2628, 2798, 3066, 3285, 4197, 4380, 4599, 5110, 5596, 6132, 6570, 6995, 7665, 8394, 9198, 9793, 10220, 12591, 13140, 13990, 15330, 16788, 18396, 19586, 20985, 22995, 25182, 27980, 29379, 30660, 39172, 41970, 45990, 48965, 50364, 58758, 62955, 83940, 88137, 91980, 97930, 102127, 117516, 125910, 146895, 176274, 195860, 204254, 251820, 293790, 306381, 352548, 408508, 440685, 510635, 587580, 612762, 714889, 881370, 919143, 1021270, 1225524, 1429778, 1531905, 1762740, 1838286, 2042540, 2144667, 2859556, 3063810, 3574445, 3676572, 4289334, 4595715, 6127620, 6434001, 7148890, 8578668, 9191430, 10723335, 12868002, 14297780, 18382860, 21446670, 25736004, 32170005, 42893340, 64340010, 128680020]

約数ペア:

[(1, 128680020), (2, 64340010), (3, 42893340), (4, 32170005), (5, 25736004), (6, 21446670), (7, 18382860), (9, 14297780), (10, 12868002), (12, 10723335), (14, 9191430), (15, 8578668), (18, 7148890), (20, 6434001), (21, 6127620), (28, 4595715), (30, 4289334), (35, 3676572), (36, 3574445), (42, 3063810), (45, 2859556), (60, 2144667), (63, 2042540), (70, 1838286), (73, 1762740), (84, 1531905), (90, 1429778), (105, 1225524), (126, 1021270), (140, 919143), (146, 881370), (180, 714889), (210, 612762), (219, 587580), (252, 510635), (292, 440685), (315, 408508), (365, 352548), (420, 306381), (438, 293790), (511, 251820), (630, 204254), (657, 195860), (730, 176274), (876, 146895), (1022, 125910), (1095, 117516), (1260, 102127), (1314, 97930), (1399, 91980), (1460, 88137), (1533, 83940), (2044, 62955), (2190, 58758), (2555, 50364), (2628, 48965), (2798, 45990), (3066, 41970), (3285, 39172), (4197, 30660), (4380, 29379), (4599, 27980), (5110, 25182), (5596, 22995), (6132, 20985), (6570, 19586), (6995, 18396), (7665, 16788), (8394, 15330), (9198, 13990), (9793, 13140), (10220, 12591)]