77806620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{541}}^1$

素因数の和:620

約数の個数: 144

約数和(自身を含む): 255685248

約数和(自身を除く): 177878628

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 47, 51, 60, 68, 85, 90, 94, 102, 141, 153, 170, 180, 188, 204, 235, 255, 282, 306, 340, 423, 470, 510, 541, 564, 612, 705, 765, 799, 846, 940, 1020, 1082, 1410, 1530, 1598, 1623, 1692, 2115, 2164, 2397, 2705, 2820, 3060, 3196, 3246, 3995, 4230, 4794, 4869, 5410, 6492, 7191, 7990, 8115, 8460, 9197, 9588, 9738, 10820, 11985, 14382, 15980, 16230, 18394, 19476, 23970, 24345, 25427, 27591, 28764, 32460, 35955, 36788, 45985, 47940, 48690, 50854, 55182, 71910, 76281, 82773, 91970, 97380, 101708, 110364, 127135, 137955, 143820, 152562, 165546, 183940, 228843, 254270, 275910, 305124, 331092, 381405, 413865, 432259, 457686, 508540, 551820, 762810, 827730, 864518, 915372, 1144215, 1296777, 1525620, 1655460, 1729036, 2161295, 2288430, 2593554, 3890331, 4322590, 4576860, 5187108, 6483885, 7780662, 8645180, 12967770, 15561324, 19451655, 25935540, 38903310, 77806620]

約数ペア:

[(1, 77806620), (2, 38903310), (3, 25935540), (4, 19451655), (5, 15561324), (6, 12967770), (9, 8645180), (10, 7780662), (12, 6483885), (15, 5187108), (17, 4576860), (18, 4322590), (20, 3890331), (30, 2593554), (34, 2288430), (36, 2161295), (45, 1729036), (47, 1655460), (51, 1525620), (60, 1296777), (68, 1144215), (85, 915372), (90, 864518), (94, 827730), (102, 762810), (141, 551820), (153, 508540), (170, 457686), (180, 432259), (188, 413865), (204, 381405), (235, 331092), (255, 305124), (282, 275910), (306, 254270), (340, 228843), (423, 183940), (470, 165546), (510, 152562), (541, 143820), (564, 137955), (612, 127135), (705, 110364), (765, 101708), (799, 97380), (846, 91970), (940, 82773), (1020, 76281), (1082, 71910), (1410, 55182), (1530, 50854), (1598, 48690), (1623, 47940), (1692, 45985), (2115, 36788), (2164, 35955), (2397, 32460), (2705, 28764), (2820, 27591), (3060, 25427), (3196, 24345), (3246, 23970), (3995, 19476), (4230, 18394), (4794, 16230), (4869, 15980), (5410, 14382), (6492, 11985), (7191, 10820), (7990, 9738), (8115, 9588), (8460, 9197)]