261709440

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{4397}}^1$

素因数の和:4450

約数の個数: 128

約数和(自身を含む): 861304320

約数和(自身を除く): 599594880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 93, 96, 120, 124, 128, 155, 160, 186, 192, 240, 248, 310, 320, 372, 384, 465, 480, 496, 620, 640, 744, 930, 960, 992, 1240, 1488, 1860, 1920, 1984, 2480, 2976, 3720, 3968, 4397, 4960, 5952, 7440, 8794, 9920, 11904, 13191, 14880, 17588, 19840, 21985, 26382, 29760, 35176, 43970, 52764, 59520, 65955, 70352, 87940, 105528, 131910, 136307, 140704, 175880, 211056, 263820, 272614, 281408, 351760, 408921, 422112, 527640, 545228, 562816, 681535, 703520, 817842, 844224, 1055280, 1090456, 1363070, 1407040, 1635684, 1688448, 2044605, 2110560, 2180912, 2726140, 2814080, 3271368, 4089210, 4221120, 4361824, 5452280, 6542736, 8178420, 8442240, 8723648, 10904560, 13085472, 16356840, 17447296, 21809120, 26170944, 32713680, 43618240, 52341888, 65427360, 87236480, 130854720, 261709440]

約数ペア:

[(1, 261709440), (2, 130854720), (3, 87236480), (4, 65427360), (5, 52341888), (6, 43618240), (8, 32713680), (10, 26170944), (12, 21809120), (15, 17447296), (16, 16356840), (20, 13085472), (24, 10904560), (30, 8723648), (31, 8442240), (32, 8178420), (40, 6542736), (48, 5452280), (60, 4361824), (62, 4221120), (64, 4089210), (80, 3271368), (93, 2814080), (96, 2726140), (120, 2180912), (124, 2110560), (128, 2044605), (155, 1688448), (160, 1635684), (186, 1407040), (192, 1363070), (240, 1090456), (248, 1055280), (310, 844224), (320, 817842), (372, 703520), (384, 681535), (465, 562816), (480, 545228), (496, 527640), (620, 422112), (640, 408921), (744, 351760), (930, 281408), (960, 272614), (992, 263820), (1240, 211056), (1488, 175880), (1860, 140704), (1920, 136307), (1984, 131910), (2480, 105528), (2976, 87940), (3720, 70352), (3968, 65955), (4397, 59520), (4960, 52764), (5952, 43970), (7440, 35176), (8794, 29760), (9920, 26382), (11904, 21985), (13191, 19840), (14880, 17588)]