1929784720

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{18979}}^1$

素因数の和:19064

約数の個数: 80

約数和(自身を含む): 4744696320

約数和(自身を除く): 2814911600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 41, 62, 80, 82, 124, 155, 164, 205, 248, 310, 328, 410, 496, 620, 656, 820, 1240, 1271, 1640, 2480, 2542, 3280, 5084, 6355, 10168, 12710, 18979, 20336, 25420, 37958, 50840, 75916, 94895, 101680, 151832, 189790, 303664, 379580, 588349, 759160, 778139, 1176698, 1518320, 1556278, 2353396, 2941745, 3112556, 3890695, 4706792, 5883490, 6225112, 7781390, 9413584, 11766980, 12450224, 15562780, 23533960, 24122309, 31125560, 47067920, 48244618, 62251120, 96489236, 120611545, 192978472, 241223090, 385956944, 482446180, 964892360, 1929784720]

約数ペア:

[(1, 1929784720), (2, 964892360), (4, 482446180), (5, 385956944), (8, 241223090), (10, 192978472), (16, 120611545), (20, 96489236), (31, 62251120), (40, 48244618), (41, 47067920), (62, 31125560), (80, 24122309), (82, 23533960), (124, 15562780), (155, 12450224), (164, 11766980), (205, 9413584), (248, 7781390), (310, 6225112), (328, 5883490), (410, 4706792), (496, 3890695), (620, 3112556), (656, 2941745), (820, 2353396), (1240, 1556278), (1271, 1518320), (1640, 1176698), (2480, 778139), (2542, 759160), (3280, 588349), (5084, 379580), (6355, 303664), (10168, 189790), (12710, 151832), (18979, 101680), (20336, 94895), (25420, 75916), (37958, 50840)]