18879053440

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{28723}}^1$

素因数の和:28834

約数の個数: 128

約数和(自身を含む): 49221446400

約数和(自身を除く): 30342392960

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 79, 80, 104, 128, 130, 158, 160, 208, 260, 316, 320, 395, 416, 520, 632, 640, 790, 832, 1027, 1040, 1264, 1580, 1664, 2054, 2080, 2528, 3160, 4108, 4160, 5056, 5135, 6320, 8216, 8320, 10112, 10270, 12640, 16432, 20540, 25280, 28723, 32864, 41080, 50560, 57446, 65728, 82160, 114892, 131456, 143615, 164320, 229784, 287230, 328640, 373399, 459568, 574460, 657280, 746798, 919136, 1148920, 1493596, 1838272, 1866995, 2269117, 2297840, 2987192, 3676544, 3733990, 4538234, 4595680, 5974384, 7467980, 9076468, 9191360, 11345585, 11948768, 14935960, 18152936, 18382720, 22691170, 23897536, 29498521, 29871920, 36305872, 45382340, 47795072, 58997042, 59743840, 72611744, 90764680, 117994084, 119487680, 145223488, 147492605, 181529360, 235988168, 238975360, 290446976, 294985210, 363058720, 471976336, 589970420, 726117440, 943952672, 1179940840, 1452234880, 1887905344, 2359881680, 3775810688, 4719763360, 9439526720, 18879053440]

約数ペア:

[(1, 18879053440), (2, 9439526720), (4, 4719763360), (5, 3775810688), (8, 2359881680), (10, 1887905344), (13, 1452234880), (16, 1179940840), (20, 943952672), (26, 726117440), (32, 589970420), (40, 471976336), (52, 363058720), (64, 294985210), (65, 290446976), (79, 238975360), (80, 235988168), (104, 181529360), (128, 147492605), (130, 145223488), (158, 119487680), (160, 117994084), (208, 90764680), (260, 72611744), (316, 59743840), (320, 58997042), (395, 47795072), (416, 45382340), (520, 36305872), (632, 29871920), (640, 29498521), (790, 23897536), (832, 22691170), (1027, 18382720), (1040, 18152936), (1264, 14935960), (1580, 11948768), (1664, 11345585), (2054, 9191360), (2080, 9076468), (2528, 7467980), (3160, 5974384), (4108, 4595680), (4160, 4538234), (5056, 3733990), (5135, 3676544), (6320, 2987192), (8216, 2297840), (8320, 2269117), (10112, 1866995), (10270, 1838272), (12640, 1493596), (16432, 1148920), (20540, 919136), (25280, 746798), (28723, 657280), (32864, 574460), (41080, 459568), (50560, 373399), (57446, 328640), (65728, 287230), (82160, 229784), (114892, 164320), (131456, 143615)]