78431200

素因数分解:

$2^5\times 5^2\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:189

約数の個数: 144

約数和(自身を含む): 208111680

約数和(自身を除く): 129680480

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 32, 34, 40, 50, 68, 73, 79, 80, 85, 100, 136, 146, 158, 160, 170, 200, 272, 292, 316, 340, 365, 395, 400, 425, 544, 584, 632, 680, 730, 790, 800, 850, 1168, 1241, 1264, 1343, 1360, 1460, 1580, 1700, 1825, 1975, 2336, 2482, 2528, 2686, 2720, 2920, 3160, 3400, 3650, 3950, 4964, 5372, 5767, 5840, 6205, 6320, 6715, 6800, 7300, 7900, 9928, 10744, 11534, 11680, 12410, 12640, 13430, 13600, 14600, 15800, 19856, 21488, 23068, 24820, 26860, 28835, 29200, 31025, 31600, 33575, 39712, 42976, 46136, 49640, 53720, 57670, 58400, 62050, 63200, 67150, 92272, 98039, 99280, 107440, 115340, 124100, 134300, 144175, 184544, 196078, 198560, 214880, 230680, 248200, 268600, 288350, 392156, 461360, 490195, 496400, 537200, 576700, 784312, 922720, 980390, 992800, 1074400, 1153400, 1568624, 1960780, 2306800, 2450975, 3137248, 3921560, 4613600, 4901950, 7843120, 9803900, 15686240, 19607800, 39215600, 78431200]

約数ペア:

[(1, 78431200), (2, 39215600), (4, 19607800), (5, 15686240), (8, 9803900), (10, 7843120), (16, 4901950), (17, 4613600), (20, 3921560), (25, 3137248), (32, 2450975), (34, 2306800), (40, 1960780), (50, 1568624), (68, 1153400), (73, 1074400), (79, 992800), (80, 980390), (85, 922720), (100, 784312), (136, 576700), (146, 537200), (158, 496400), (160, 490195), (170, 461360), (200, 392156), (272, 288350), (292, 268600), (316, 248200), (340, 230680), (365, 214880), (395, 198560), (400, 196078), (425, 184544), (544, 144175), (584, 134300), (632, 124100), (680, 115340), (730, 107440), (790, 99280), (800, 98039), (850, 92272), (1168, 67150), (1241, 63200), (1264, 62050), (1343, 58400), (1360, 57670), (1460, 53720), (1580, 49640), (1700, 46136), (1825, 42976), (1975, 39712), (2336, 33575), (2482, 31600), (2528, 31025), (2686, 29200), (2720, 28835), (2920, 26860), (3160, 24820), (3400, 23068), (3650, 21488), (3950, 19856), (4964, 15800), (5372, 14600), (5767, 13600), (5840, 13430), (6205, 12640), (6320, 12410), (6715, 11680), (6800, 11534), (7300, 10744), (7900, 9928)]