388202480

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{397}}^1\times {\mathrm{719}}^1$

素因数の和:1146

約数の個数: 80

約数和(自身を含む): 959402880

約数和(自身を除く): 571200400

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 397, 680, 719, 794, 1360, 1438, 1588, 1985, 2876, 3176, 3595, 3970, 5752, 6352, 6749, 7190, 7940, 11504, 12223, 13498, 14380, 15880, 24446, 26996, 28760, 31760, 33745, 48892, 53992, 57520, 61115, 67490, 97784, 107984, 122230, 134980, 195568, 244460, 269960, 285443, 488920, 539920, 570886, 977840, 1141772, 1427215, 2283544, 2854430, 4567088, 4852531, 5708860, 9705062, 11417720, 19410124, 22835440, 24262655, 38820248, 48525310, 77640496, 97050620, 194101240, 388202480]

約数ペア:

[(1, 388202480), (2, 194101240), (4, 97050620), (5, 77640496), (8, 48525310), (10, 38820248), (16, 24262655), (17, 22835440), (20, 19410124), (34, 11417720), (40, 9705062), (68, 5708860), (80, 4852531), (85, 4567088), (136, 2854430), (170, 2283544), (272, 1427215), (340, 1141772), (397, 977840), (680, 570886), (719, 539920), (794, 488920), (1360, 285443), (1438, 269960), (1588, 244460), (1985, 195568), (2876, 134980), (3176, 122230), (3595, 107984), (3970, 97784), (5752, 67490), (6352, 61115), (6749, 57520), (7190, 53992), (7940, 48892), (11504, 33745), (12223, 31760), (13498, 28760), (14380, 26996), (15880, 24446)]