20030220

素因数分解:

$2^2\times 3^3\times 5^1\times 7^2\times {\mathrm{757}}^1$

素因数の和:789

約数の個数: 144

約数和(自身を含む): 72586080

約数和(自身を除く): 52555860

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 49, 54, 60, 63, 70, 84, 90, 98, 105, 108, 126, 135, 140, 147, 180, 189, 196, 210, 245, 252, 270, 294, 315, 378, 420, 441, 490, 540, 588, 630, 735, 756, 757, 882, 945, 980, 1260, 1323, 1470, 1514, 1764, 1890, 2205, 2271, 2646, 2940, 3028, 3780, 3785, 4410, 4542, 5292, 5299, 6615, 6813, 7570, 8820, 9084, 10598, 11355, 13230, 13626, 15140, 15897, 20439, 21196, 22710, 26460, 26495, 27252, 31794, 34065, 37093, 40878, 45420, 47691, 52990, 63588, 68130, 74186, 79485, 81756, 95382, 102195, 105980, 111279, 136260, 143073, 148372, 158970, 185465, 190764, 204390, 222558, 238455, 286146, 317940, 333837, 370930, 408780, 445116, 476910, 556395, 572292, 667674, 715365, 741860, 953820, 1001511, 1112790, 1335348, 1430730, 1669185, 2003022, 2225580, 2861460, 3338370, 4006044, 5007555, 6676740, 10015110, 20030220]

約数ペア:

[(1, 20030220), (2, 10015110), (3, 6676740), (4, 5007555), (5, 4006044), (6, 3338370), (7, 2861460), (9, 2225580), (10, 2003022), (12, 1669185), (14, 1430730), (15, 1335348), (18, 1112790), (20, 1001511), (21, 953820), (27, 741860), (28, 715365), (30, 667674), (35, 572292), (36, 556395), (42, 476910), (45, 445116), (49, 408780), (54, 370930), (60, 333837), (63, 317940), (70, 286146), (84, 238455), (90, 222558), (98, 204390), (105, 190764), (108, 185465), (126, 158970), (135, 148372), (140, 143073), (147, 136260), (180, 111279), (189, 105980), (196, 102195), (210, 95382), (245, 81756), (252, 79485), (270, 74186), (294, 68130), (315, 63588), (378, 52990), (420, 47691), (441, 45420), (490, 40878), (540, 37093), (588, 34065), (630, 31794), (735, 27252), (756, 26495), (757, 26460), (882, 22710), (945, 21196), (980, 20439), (1260, 15897), (1323, 15140), (1470, 13626), (1514, 13230), (1764, 11355), (1890, 10598), (2205, 9084), (2271, 8820), (2646, 7570), (2940, 6813), (3028, 6615), (3780, 5299), (3785, 5292), (4410, 4542)]