1721879880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{887}}^1\times {\mathrm{2311}}^1$

素因数の和:3219

約数の個数: 128

約数和(自身を含む): 5912801280

約数和(自身を除く): 4190921400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 887, 1774, 2311, 2661, 3548, 4435, 4622, 5322, 6209, 6933, 7096, 8870, 9244, 10644, 11555, 12418, 13305, 13866, 16177, 17740, 18488, 18627, 21288, 23110, 24836, 26610, 27732, 31045, 32354, 34665, 35480, 37254, 46220, 48531, 49672, 53220, 55464, 62090, 64708, 69330, 74508, 80885, 92440, 93135, 97062, 106440, 124180, 129416, 138660, 149016, 161770, 186270, 194124, 242655, 248360, 277320, 323540, 372540, 388248, 485310, 647080, 745080, 970620, 1941240, 2049857, 4099714, 6149571, 8199428, 10249285, 12299142, 14348999, 16398856, 20498570, 24598284, 28697998, 30747855, 40997140, 43046997, 49196568, 57395996, 61495710, 71744995, 81994280, 86093994, 114791992, 122991420, 143489990, 172187988, 215234985, 245982840, 286979980, 344375976, 430469970, 573959960, 860939940, 1721879880]

約数ペア:

[(1, 1721879880), (2, 860939940), (3, 573959960), (4, 430469970), (5, 344375976), (6, 286979980), (7, 245982840), (8, 215234985), (10, 172187988), (12, 143489990), (14, 122991420), (15, 114791992), (20, 86093994), (21, 81994280), (24, 71744995), (28, 61495710), (30, 57395996), (35, 49196568), (40, 43046997), (42, 40997140), (56, 30747855), (60, 28697998), (70, 24598284), (84, 20498570), (105, 16398856), (120, 14348999), (140, 12299142), (168, 10249285), (210, 8199428), (280, 6149571), (420, 4099714), (840, 2049857), (887, 1941240), (1774, 970620), (2311, 745080), (2661, 647080), (3548, 485310), (4435, 388248), (4622, 372540), (5322, 323540), (6209, 277320), (6933, 248360), (7096, 242655), (8870, 194124), (9244, 186270), (10644, 161770), (11555, 149016), (12418, 138660), (13305, 129416), (13866, 124180), (16177, 106440), (17740, 97062), (18488, 93135), (18627, 92440), (21288, 80885), (23110, 74508), (24836, 69330), (26610, 64708), (27732, 62090), (31045, 55464), (32354, 53220), (34665, 49672), (35480, 48531), (37254, 46220)]