248393080

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{811}}^1$

素因数の和:885

約数の個数: 128

約数和(自身を含む): 654796800

約数和(自身を除く): 406403720

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 31, 38, 40, 52, 62, 65, 76, 95, 104, 124, 130, 152, 155, 190, 247, 248, 260, 310, 380, 403, 494, 520, 589, 620, 760, 806, 811, 988, 1178, 1235, 1240, 1612, 1622, 1976, 2015, 2356, 2470, 2945, 3224, 3244, 4030, 4055, 4712, 4940, 5890, 6488, 7657, 8060, 8110, 9880, 10543, 11780, 15314, 15409, 16120, 16220, 21086, 23560, 25141, 30628, 30818, 32440, 38285, 42172, 50282, 52715, 61256, 61636, 76570, 77045, 84344, 100564, 105430, 123272, 125705, 153140, 154090, 200317, 201128, 210860, 251410, 306280, 308180, 326833, 400634, 421720, 477679, 502820, 616360, 653666, 801268, 955358, 1001585, 1005640, 1307332, 1602536, 1634165, 1910716, 2003170, 2388395, 2614664, 3268330, 3821432, 4006340, 4776790, 6209827, 6536660, 8012680, 9553580, 12419654, 13073320, 19107160, 24839308, 31049135, 49678616, 62098270, 124196540, 248393080]

約数ペア:

[(1, 248393080), (2, 124196540), (4, 62098270), (5, 49678616), (8, 31049135), (10, 24839308), (13, 19107160), (19, 13073320), (20, 12419654), (26, 9553580), (31, 8012680), (38, 6536660), (40, 6209827), (52, 4776790), (62, 4006340), (65, 3821432), (76, 3268330), (95, 2614664), (104, 2388395), (124, 2003170), (130, 1910716), (152, 1634165), (155, 1602536), (190, 1307332), (247, 1005640), (248, 1001585), (260, 955358), (310, 801268), (380, 653666), (403, 616360), (494, 502820), (520, 477679), (589, 421720), (620, 400634), (760, 326833), (806, 308180), (811, 306280), (988, 251410), (1178, 210860), (1235, 201128), (1240, 200317), (1612, 154090), (1622, 153140), (1976, 125705), (2015, 123272), (2356, 105430), (2470, 100564), (2945, 84344), (3224, 77045), (3244, 76570), (4030, 61636), (4055, 61256), (4712, 52715), (4940, 50282), (5890, 42172), (6488, 38285), (7657, 32440), (8060, 30818), (8110, 30628), (9880, 25141), (10543, 23560), (11780, 21086), (15314, 16220), (15409, 16120)]