209324900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^2\times {\mathrm{131}}^1$

素因数の和:222

約数の個数: 108

約数和(自身を含む): 498978480

約数和(自身を除く): 289653580

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 29, 38, 50, 58, 76, 95, 100, 116, 131, 145, 190, 262, 290, 380, 475, 524, 551, 580, 655, 725, 841, 950, 1102, 1310, 1450, 1682, 1900, 2204, 2489, 2620, 2755, 2900, 3275, 3364, 3799, 4205, 4978, 5510, 6550, 7598, 8410, 9956, 11020, 12445, 13100, 13775, 15196, 15979, 16820, 18995, 21025, 24890, 27550, 31958, 37990, 42050, 49780, 55100, 62225, 63916, 72181, 75980, 79895, 84100, 94975, 110171, 124450, 144362, 159790, 189950, 220342, 248900, 288724, 319580, 360905, 379900, 399475, 440684, 550855, 721810, 798950, 1101710, 1443620, 1597900, 1804525, 2093249, 2203420, 2754275, 3609050, 4186498, 5508550, 7218100, 8372996, 10466245, 11017100, 20932490, 41864980, 52331225, 104662450, 209324900]

約数ペア:

[(1, 209324900), (2, 104662450), (4, 52331225), (5, 41864980), (10, 20932490), (19, 11017100), (20, 10466245), (25, 8372996), (29, 7218100), (38, 5508550), (50, 4186498), (58, 3609050), (76, 2754275), (95, 2203420), (100, 2093249), (116, 1804525), (131, 1597900), (145, 1443620), (190, 1101710), (262, 798950), (290, 721810), (380, 550855), (475, 440684), (524, 399475), (551, 379900), (580, 360905), (655, 319580), (725, 288724), (841, 248900), (950, 220342), (1102, 189950), (1310, 159790), (1450, 144362), (1682, 124450), (1900, 110171), (2204, 94975), (2489, 84100), (2620, 79895), (2755, 75980), (2900, 72181), (3275, 63916), (3364, 62225), (3799, 55100), (4205, 49780), (4978, 42050), (5510, 37990), (6550, 31958), (7598, 27550), (8410, 24890), (9956, 21025), (11020, 18995), (12445, 16820), (13100, 15979), (13775, 15196)]