402990080

素因数分解:

$2^{10}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2539}}^1$

素因数の和:2595

約数の個数: 88

約数和(自身を含む): 998280960

約数和(自身を除く): 595290880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 992, 1024, 1240, 1280, 1984, 2480, 2539, 2560, 3968, 4960, 5078, 5120, 7936, 9920, 10156, 12695, 15872, 19840, 20312, 25390, 31744, 39680, 40624, 50780, 78709, 79360, 81248, 101560, 157418, 158720, 162496, 203120, 314836, 324992, 393545, 406240, 629672, 649984, 787090, 812480, 1259344, 1299968, 1574180, 1624960, 2518688, 2599936, 3148360, 3249920, 5037376, 6296720, 6499840, 10074752, 12593440, 12999680, 20149504, 25186880, 40299008, 50373760, 80598016, 100747520, 201495040, 402990080]

約数ペア:

[(1, 402990080), (2, 201495040), (4, 100747520), (5, 80598016), (8, 50373760), (10, 40299008), (16, 25186880), (20, 20149504), (31, 12999680), (32, 12593440), (40, 10074752), (62, 6499840), (64, 6296720), (80, 5037376), (124, 3249920), (128, 3148360), (155, 2599936), (160, 2518688), (248, 1624960), (256, 1574180), (310, 1299968), (320, 1259344), (496, 812480), (512, 787090), (620, 649984), (640, 629672), (992, 406240), (1024, 393545), (1240, 324992), (1280, 314836), (1984, 203120), (2480, 162496), (2539, 158720), (2560, 157418), (3968, 101560), (4960, 81248), (5078, 79360), (5120, 78709), (7936, 50780), (9920, 40624), (10156, 39680), (12695, 31744), (15872, 25390), (19840, 20312)]