990342400

素因数分解:

$2^8\times 5^2\times {\mathrm{271}}^1\times {\mathrm{571}}^1$

素因数の和:868

約数の個数: 108

約数和(自身を含む): 2464606144

約数和(自身を除く): 1474263744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 271, 320, 400, 542, 571, 640, 800, 1084, 1142, 1280, 1355, 1600, 2168, 2284, 2710, 2855, 3200, 4336, 4568, 5420, 5710, 6400, 6775, 8672, 9136, 10840, 11420, 13550, 14275, 17344, 18272, 21680, 22840, 27100, 28550, 34688, 36544, 43360, 45680, 54200, 57100, 69376, 73088, 86720, 91360, 108400, 114200, 146176, 154741, 173440, 182720, 216800, 228400, 309482, 346880, 365440, 433600, 456800, 618964, 730880, 773705, 867200, 913600, 1237928, 1547410, 1734400, 1827200, 2475856, 3094820, 3654400, 3868525, 4951712, 6189640, 7737050, 9903424, 12379280, 15474100, 19806848, 24758560, 30948200, 39613696, 49517120, 61896400, 99034240, 123792800, 198068480, 247585600, 495171200, 990342400]

約数ペア:

[(1, 990342400), (2, 495171200), (4, 247585600), (5, 198068480), (8, 123792800), (10, 99034240), (16, 61896400), (20, 49517120), (25, 39613696), (32, 30948200), (40, 24758560), (50, 19806848), (64, 15474100), (80, 12379280), (100, 9903424), (128, 7737050), (160, 6189640), (200, 4951712), (256, 3868525), (271, 3654400), (320, 3094820), (400, 2475856), (542, 1827200), (571, 1734400), (640, 1547410), (800, 1237928), (1084, 913600), (1142, 867200), (1280, 773705), (1355, 730880), (1600, 618964), (2168, 456800), (2284, 433600), (2710, 365440), (2855, 346880), (3200, 309482), (4336, 228400), (4568, 216800), (5420, 182720), (5710, 173440), (6400, 154741), (6775, 146176), (8672, 114200), (9136, 108400), (10840, 91360), (11420, 86720), (13550, 73088), (14275, 69376), (17344, 57100), (18272, 54200), (21680, 45680), (22840, 43360), (27100, 36544), (28550, 34688)]