181372940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:172

約数の個数: 144

約数和(自身を含む): 475668480

約数和(自身を除く): 294295540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 31, 35, 46, 62, 70, 79, 92, 115, 124, 140, 155, 158, 161, 217, 230, 310, 316, 322, 395, 434, 460, 529, 553, 620, 644, 713, 790, 805, 868, 1058, 1085, 1106, 1426, 1580, 1610, 1817, 2116, 2170, 2212, 2449, 2645, 2765, 2852, 3220, 3565, 3634, 3703, 4340, 4898, 4991, 5290, 5530, 7130, 7268, 7406, 9085, 9796, 9982, 10580, 11060, 12245, 12719, 14260, 14812, 16399, 17143, 18170, 18515, 19964, 24490, 24955, 25438, 32798, 34286, 36340, 37030, 41791, 48980, 49910, 50876, 56327, 63595, 65596, 68572, 74060, 81995, 83582, 85715, 99820, 112654, 114793, 127190, 163990, 167164, 171430, 208955, 225308, 229586, 254380, 281635, 292537, 327980, 342860, 394289, 417910, 459172, 563270, 573965, 585074, 788578, 835820, 1126540, 1147930, 1170148, 1295521, 1462685, 1577156, 1971445, 2295860, 2591042, 2925370, 3942890, 5182084, 5850740, 6477605, 7885780, 9068647, 12955210, 18137294, 25910420, 36274588, 45343235, 90686470, 181372940]

約数ペア:

[(1, 181372940), (2, 90686470), (4, 45343235), (5, 36274588), (7, 25910420), (10, 18137294), (14, 12955210), (20, 9068647), (23, 7885780), (28, 6477605), (31, 5850740), (35, 5182084), (46, 3942890), (62, 2925370), (70, 2591042), (79, 2295860), (92, 1971445), (115, 1577156), (124, 1462685), (140, 1295521), (155, 1170148), (158, 1147930), (161, 1126540), (217, 835820), (230, 788578), (310, 585074), (316, 573965), (322, 563270), (395, 459172), (434, 417910), (460, 394289), (529, 342860), (553, 327980), (620, 292537), (644, 281635), (713, 254380), (790, 229586), (805, 225308), (868, 208955), (1058, 171430), (1085, 167164), (1106, 163990), (1426, 127190), (1580, 114793), (1610, 112654), (1817, 99820), (2116, 85715), (2170, 83582), (2212, 81995), (2449, 74060), (2645, 68572), (2765, 65596), (2852, 63595), (3220, 56327), (3565, 50876), (3634, 49910), (3703, 48980), (4340, 41791), (4898, 37030), (4991, 36340), (5290, 34286), (5530, 32798), (7130, 25438), (7268, 24955), (7406, 24490), (9085, 19964), (9796, 18515), (9982, 18170), (10580, 17143), (11060, 16399), (12245, 14812), (12719, 14260)]