766261720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{2053}}^1$

素因数の和:2145

約数の個数: 128

約数和(自身を含む): 2082263040

約数和(自身を除く): 1316001320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 43, 56, 62, 70, 86, 124, 140, 155, 172, 215, 217, 248, 280, 301, 310, 344, 430, 434, 602, 620, 860, 868, 1085, 1204, 1240, 1333, 1505, 1720, 1736, 2053, 2170, 2408, 2666, 3010, 4106, 4340, 5332, 6020, 6665, 8212, 8680, 9331, 10265, 10664, 12040, 13330, 14371, 16424, 18662, 20530, 26660, 28742, 37324, 41060, 46655, 53320, 57484, 63643, 71855, 74648, 82120, 88279, 93310, 114968, 127286, 143710, 176558, 186620, 254572, 287420, 318215, 353116, 373240, 441395, 445501, 509144, 574840, 617953, 636430, 706232, 882790, 891002, 1235906, 1272860, 1765580, 1782004, 2227505, 2471812, 2545720, 2736649, 3089765, 3531160, 3564008, 4455010, 4943624, 5473298, 6179530, 8910020, 10946596, 12359060, 13683245, 17820040, 19156543, 21893192, 24718120, 27366490, 38313086, 54732980, 76626172, 95782715, 109465960, 153252344, 191565430, 383130860, 766261720]

約数ペア:

[(1, 766261720), (2, 383130860), (4, 191565430), (5, 153252344), (7, 109465960), (8, 95782715), (10, 76626172), (14, 54732980), (20, 38313086), (28, 27366490), (31, 24718120), (35, 21893192), (40, 19156543), (43, 17820040), (56, 13683245), (62, 12359060), (70, 10946596), (86, 8910020), (124, 6179530), (140, 5473298), (155, 4943624), (172, 4455010), (215, 3564008), (217, 3531160), (248, 3089765), (280, 2736649), (301, 2545720), (310, 2471812), (344, 2227505), (430, 1782004), (434, 1765580), (602, 1272860), (620, 1235906), (860, 891002), (868, 882790), (1085, 706232), (1204, 636430), (1240, 617953), (1333, 574840), (1505, 509144), (1720, 445501), (1736, 441395), (2053, 373240), (2170, 353116), (2408, 318215), (2666, 287420), (3010, 254572), (4106, 186620), (4340, 176558), (5332, 143710), (6020, 127286), (6665, 114968), (8212, 93310), (8680, 88279), (9331, 82120), (10265, 74648), (10664, 71855), (12040, 63643), (13330, 57484), (14371, 53320), (16424, 46655), (18662, 41060), (20530, 37324), (26660, 28742)]