20555564800

素因数分解:

$2^8\times 5^2\times {\mathrm{241}}^1\times {\mathrm{13327}}^1$

素因数の和:13594

約数の個数: 108

約数和(自身を含む): 51093181216

約数和(自身を除く): 30537616416

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 241, 256, 320, 400, 482, 640, 800, 964, 1205, 1280, 1600, 1928, 2410, 3200, 3856, 4820, 6025, 6400, 7712, 9640, 12050, 13327, 15424, 19280, 24100, 26654, 30848, 38560, 48200, 53308, 61696, 66635, 77120, 96400, 106616, 133270, 154240, 192800, 213232, 266540, 308480, 333175, 385600, 426464, 533080, 666350, 771200, 852928, 1066160, 1332700, 1542400, 1705856, 2132320, 2665400, 3211807, 3411712, 4264640, 5330800, 6423614, 8529280, 10661600, 12847228, 16059035, 17058560, 21323200, 25694456, 32118070, 42646400, 51388912, 64236140, 80295175, 85292800, 102777824, 128472280, 160590350, 205555648, 256944560, 321180700, 411111296, 513889120, 642361400, 822222592, 1027778240, 1284722800, 2055556480, 2569445600, 4111112960, 5138891200, 10277782400, 20555564800]

約数ペア:

[(1, 20555564800), (2, 10277782400), (4, 5138891200), (5, 4111112960), (8, 2569445600), (10, 2055556480), (16, 1284722800), (20, 1027778240), (25, 822222592), (32, 642361400), (40, 513889120), (50, 411111296), (64, 321180700), (80, 256944560), (100, 205555648), (128, 160590350), (160, 128472280), (200, 102777824), (241, 85292800), (256, 80295175), (320, 64236140), (400, 51388912), (482, 42646400), (640, 32118070), (800, 25694456), (964, 21323200), (1205, 17058560), (1280, 16059035), (1600, 12847228), (1928, 10661600), (2410, 8529280), (3200, 6423614), (3856, 5330800), (4820, 4264640), (6025, 3411712), (6400, 3211807), (7712, 2665400), (9640, 2132320), (12050, 1705856), (13327, 1542400), (15424, 1332700), (19280, 1066160), (24100, 852928), (26654, 771200), (30848, 666350), (38560, 533080), (48200, 426464), (53308, 385600), (61696, 333175), (66635, 308480), (77120, 266540), (96400, 213232), (106616, 192800), (133270, 154240)]