328947200

素因数分解:

$2^9\times 5^2\times {\mathrm{31}}^1\times {\mathrm{829}}^1$

素因数の和:888

約数の個数: 120

約数和(自身を含む): 842297280

約数和(自身を除く): 513350080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 128, 155, 160, 200, 248, 256, 310, 320, 400, 496, 512, 620, 640, 775, 800, 829, 992, 1240, 1280, 1550, 1600, 1658, 1984, 2480, 2560, 3100, 3200, 3316, 3968, 4145, 4960, 6200, 6400, 6632, 7936, 8290, 9920, 12400, 12800, 13264, 15872, 16580, 19840, 20725, 24800, 25699, 26528, 33160, 39680, 41450, 49600, 51398, 53056, 66320, 79360, 82900, 99200, 102796, 106112, 128495, 132640, 165800, 198400, 205592, 212224, 256990, 265280, 331600, 396800, 411184, 424448, 513980, 530560, 642475, 663200, 822368, 1027960, 1061120, 1284950, 1326400, 1644736, 2055920, 2122240, 2569900, 2652800, 3289472, 4111840, 5139800, 5305600, 6578944, 8223680, 10279600, 10611200, 13157888, 16447360, 20559200, 32894720, 41118400, 65789440, 82236800, 164473600, 328947200]

約数ペア:

[(1, 328947200), (2, 164473600), (4, 82236800), (5, 65789440), (8, 41118400), (10, 32894720), (16, 20559200), (20, 16447360), (25, 13157888), (31, 10611200), (32, 10279600), (40, 8223680), (50, 6578944), (62, 5305600), (64, 5139800), (80, 4111840), (100, 3289472), (124, 2652800), (128, 2569900), (155, 2122240), (160, 2055920), (200, 1644736), (248, 1326400), (256, 1284950), (310, 1061120), (320, 1027960), (400, 822368), (496, 663200), (512, 642475), (620, 530560), (640, 513980), (775, 424448), (800, 411184), (829, 396800), (992, 331600), (1240, 265280), (1280, 256990), (1550, 212224), (1600, 205592), (1658, 198400), (1984, 165800), (2480, 132640), (2560, 128495), (3100, 106112), (3200, 102796), (3316, 99200), (3968, 82900), (4145, 79360), (4960, 66320), (6200, 53056), (6400, 51398), (6632, 49600), (7936, 41450), (8290, 39680), (9920, 33160), (12400, 26528), (12800, 25699), (13264, 24800), (15872, 20725), (16580, 19840)]