81830320

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{311}}^1$

素因数の和:371

約数の個数: 160

約数和(自身を含む): 233985024

約数和(自身を除く): 152154704

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 23, 26, 40, 44, 46, 52, 55, 65, 80, 88, 92, 104, 110, 115, 130, 143, 176, 184, 208, 220, 230, 253, 260, 286, 299, 311, 368, 440, 460, 506, 520, 572, 598, 622, 715, 880, 920, 1012, 1040, 1144, 1196, 1244, 1265, 1430, 1495, 1555, 1840, 2024, 2288, 2392, 2488, 2530, 2860, 2990, 3110, 3289, 3421, 4043, 4048, 4784, 4976, 5060, 5720, 5980, 6220, 6578, 6842, 7153, 8086, 10120, 11440, 11960, 12440, 13156, 13684, 14306, 16172, 16445, 17105, 20215, 20240, 23920, 24880, 26312, 27368, 28612, 32344, 32890, 34210, 35765, 40430, 44473, 52624, 54736, 57224, 64688, 65780, 68420, 71530, 78683, 80860, 88946, 92989, 114448, 131560, 136840, 143060, 157366, 161720, 177892, 185978, 222365, 263120, 273680, 286120, 314732, 323440, 355784, 371956, 393415, 444730, 464945, 572240, 629464, 711568, 743912, 786830, 889460, 929890, 1022879, 1258928, 1487824, 1573660, 1778920, 1859780, 2045758, 3147320, 3557840, 3719560, 4091516, 5114395, 6294640, 7439120, 8183032, 10228790, 16366064, 20457580, 40915160, 81830320]

約数ペア:

[(1, 81830320), (2, 40915160), (4, 20457580), (5, 16366064), (8, 10228790), (10, 8183032), (11, 7439120), (13, 6294640), (16, 5114395), (20, 4091516), (22, 3719560), (23, 3557840), (26, 3147320), (40, 2045758), (44, 1859780), (46, 1778920), (52, 1573660), (55, 1487824), (65, 1258928), (80, 1022879), (88, 929890), (92, 889460), (104, 786830), (110, 743912), (115, 711568), (130, 629464), (143, 572240), (176, 464945), (184, 444730), (208, 393415), (220, 371956), (230, 355784), (253, 323440), (260, 314732), (286, 286120), (299, 273680), (311, 263120), (368, 222365), (440, 185978), (460, 177892), (506, 161720), (520, 157366), (572, 143060), (598, 136840), (622, 131560), (715, 114448), (880, 92989), (920, 88946), (1012, 80860), (1040, 78683), (1144, 71530), (1196, 68420), (1244, 65780), (1265, 64688), (1430, 57224), (1495, 54736), (1555, 52624), (1840, 44473), (2024, 40430), (2288, 35765), (2392, 34210), (2488, 32890), (2530, 32344), (2860, 28612), (2990, 27368), (3110, 26312), (3289, 24880), (3421, 23920), (4043, 20240), (4048, 20215), (4784, 17105), (4976, 16445), (5060, 16172), (5720, 14306), (5980, 13684), (6220, 13156), (6578, 12440), (6842, 11960), (7153, 11440), (8086, 10120)]