15290820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{263}}^1$

素因数の和:314

約数の個数: 144

約数和(自身を含む): 51891840

約数和(自身を除く): 36601020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 19, 20, 30, 34, 36, 38, 45, 51, 57, 60, 68, 76, 85, 90, 95, 102, 114, 153, 170, 171, 180, 190, 204, 228, 255, 263, 285, 306, 323, 340, 342, 380, 510, 526, 570, 612, 646, 684, 765, 789, 855, 969, 1020, 1052, 1140, 1292, 1315, 1530, 1578, 1615, 1710, 1938, 2367, 2630, 2907, 3060, 3156, 3230, 3420, 3876, 3945, 4471, 4734, 4845, 4997, 5260, 5814, 6460, 7890, 8942, 9468, 9690, 9994, 11628, 11835, 13413, 14535, 14991, 15780, 17884, 19380, 19988, 22355, 23670, 24985, 26826, 29070, 29982, 40239, 44710, 44973, 47340, 49970, 53652, 58140, 59964, 67065, 74955, 80478, 84949, 89420, 89946, 99940, 134130, 149910, 160956, 169898, 179892, 201195, 224865, 254847, 268260, 299820, 339796, 402390, 424745, 449730, 509694, 764541, 804780, 849490, 899460, 1019388, 1274235, 1529082, 1698980, 2548470, 3058164, 3822705, 5096940, 7645410, 15290820]

約数ペア:

[(1, 15290820), (2, 7645410), (3, 5096940), (4, 3822705), (5, 3058164), (6, 2548470), (9, 1698980), (10, 1529082), (12, 1274235), (15, 1019388), (17, 899460), (18, 849490), (19, 804780), (20, 764541), (30, 509694), (34, 449730), (36, 424745), (38, 402390), (45, 339796), (51, 299820), (57, 268260), (60, 254847), (68, 224865), (76, 201195), (85, 179892), (90, 169898), (95, 160956), (102, 149910), (114, 134130), (153, 99940), (170, 89946), (171, 89420), (180, 84949), (190, 80478), (204, 74955), (228, 67065), (255, 59964), (263, 58140), (285, 53652), (306, 49970), (323, 47340), (340, 44973), (342, 44710), (380, 40239), (510, 29982), (526, 29070), (570, 26826), (612, 24985), (646, 23670), (684, 22355), (765, 19988), (789, 19380), (855, 17884), (969, 15780), (1020, 14991), (1052, 14535), (1140, 13413), (1292, 11835), (1315, 11628), (1530, 9994), (1578, 9690), (1615, 9468), (1710, 8942), (1938, 7890), (2367, 6460), (2630, 5814), (2907, 5260), (3060, 4997), (3156, 4845), (3230, 4734), (3420, 4471), (3876, 3945)]