67608320

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1$

素因数の和:290

約数の個数: 144

約数和(自身を含む): 185431680

約数和(自身を除く): 117823360

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 32, 34, 40, 52, 64, 65, 68, 80, 85, 104, 128, 130, 136, 160, 170, 208, 221, 239, 256, 260, 272, 320, 340, 416, 442, 478, 520, 544, 640, 680, 832, 884, 956, 1040, 1088, 1105, 1195, 1280, 1360, 1664, 1768, 1912, 2080, 2176, 2210, 2390, 2720, 3107, 3328, 3536, 3824, 4063, 4160, 4352, 4420, 4780, 5440, 6214, 7072, 7648, 8126, 8320, 8840, 9560, 10880, 12428, 14144, 15296, 15535, 16252, 16640, 17680, 19120, 20315, 21760, 24856, 28288, 30592, 31070, 32504, 35360, 38240, 40630, 49712, 52819, 56576, 61184, 62140, 65008, 70720, 76480, 81260, 99424, 105638, 124280, 130016, 141440, 152960, 162520, 198848, 211276, 248560, 260032, 264095, 282880, 305920, 325040, 397696, 422552, 497120, 520064, 528190, 650080, 795392, 845104, 994240, 1040128, 1056380, 1300160, 1690208, 1988480, 2112760, 2600320, 3380416, 3976960, 4225520, 5200640, 6760832, 8451040, 13521664, 16902080, 33804160, 67608320]

約数ペア:

[(1, 67608320), (2, 33804160), (4, 16902080), (5, 13521664), (8, 8451040), (10, 6760832), (13, 5200640), (16, 4225520), (17, 3976960), (20, 3380416), (26, 2600320), (32, 2112760), (34, 1988480), (40, 1690208), (52, 1300160), (64, 1056380), (65, 1040128), (68, 994240), (80, 845104), (85, 795392), (104, 650080), (128, 528190), (130, 520064), (136, 497120), (160, 422552), (170, 397696), (208, 325040), (221, 305920), (239, 282880), (256, 264095), (260, 260032), (272, 248560), (320, 211276), (340, 198848), (416, 162520), (442, 152960), (478, 141440), (520, 130016), (544, 124280), (640, 105638), (680, 99424), (832, 81260), (884, 76480), (956, 70720), (1040, 65008), (1088, 62140), (1105, 61184), (1195, 56576), (1280, 52819), (1360, 49712), (1664, 40630), (1768, 38240), (1912, 35360), (2080, 32504), (2176, 31070), (2210, 30592), (2390, 28288), (2720, 24856), (3107, 21760), (3328, 20315), (3536, 19120), (3824, 17680), (4063, 16640), (4160, 16252), (4352, 15535), (4420, 15296), (4780, 14144), (5440, 12428), (6214, 10880), (7072, 9560), (7648, 8840), (8126, 8320)]