216801800

素因数分解:

$2^3\times 5^2\times {\mathrm{53}}^1\times {\mathrm{113}}^1\times {\mathrm{181}}^1$

素因数の和:363

約数の個数: 96

約数和(自身を含む): 520982280

約数和(自身を除く): 304180480

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 53, 100, 106, 113, 181, 200, 212, 226, 265, 362, 424, 452, 530, 565, 724, 904, 905, 1060, 1130, 1325, 1448, 1810, 2120, 2260, 2650, 2825, 3620, 4520, 4525, 5300, 5650, 5989, 7240, 9050, 9593, 10600, 11300, 11978, 18100, 19186, 20453, 22600, 23956, 29945, 36200, 38372, 40906, 47912, 47965, 59890, 76744, 81812, 95930, 102265, 119780, 149725, 163624, 191860, 204530, 239560, 239825, 299450, 383720, 409060, 479650, 511325, 598900, 818120, 959300, 1022650, 1084009, 1197800, 1918600, 2045300, 2168018, 4090600, 4336036, 5420045, 8672072, 10840090, 21680180, 27100225, 43360360, 54200450, 108400900, 216801800]

約数ペア:

[(1, 216801800), (2, 108400900), (4, 54200450), (5, 43360360), (8, 27100225), (10, 21680180), (20, 10840090), (25, 8672072), (40, 5420045), (50, 4336036), (53, 4090600), (100, 2168018), (106, 2045300), (113, 1918600), (181, 1197800), (200, 1084009), (212, 1022650), (226, 959300), (265, 818120), (362, 598900), (424, 511325), (452, 479650), (530, 409060), (565, 383720), (724, 299450), (904, 239825), (905, 239560), (1060, 204530), (1130, 191860), (1325, 163624), (1448, 149725), (1810, 119780), (2120, 102265), (2260, 95930), (2650, 81812), (2825, 76744), (3620, 59890), (4520, 47965), (4525, 47912), (5300, 40906), (5650, 38372), (5989, 36200), (7240, 29945), (9050, 23956), (9593, 22600), (10600, 20453), (11300, 19186), (11978, 18100)]