80397420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{149}}^1$

素因数の和:224

約数の個数: 144

約数和(自身を含む): 250840800

約数和(自身を除く): 170443380

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 23, 30, 34, 46, 51, 60, 68, 69, 85, 92, 102, 115, 138, 149, 170, 204, 230, 255, 276, 298, 340, 345, 391, 447, 460, 510, 529, 596, 690, 745, 782, 894, 1020, 1058, 1173, 1380, 1490, 1564, 1587, 1788, 1955, 2116, 2235, 2346, 2533, 2645, 2980, 3174, 3427, 3910, 4470, 4692, 5066, 5290, 5865, 6348, 6854, 7599, 7820, 7935, 8940, 8993, 10132, 10281, 10580, 11730, 12665, 13708, 15198, 15870, 17135, 17986, 20562, 23460, 25330, 26979, 30396, 31740, 34270, 35972, 37995, 41124, 44965, 50660, 51405, 53958, 58259, 68540, 75990, 78821, 89930, 102810, 107916, 116518, 134895, 151980, 157642, 174777, 179860, 205620, 233036, 236463, 269790, 291295, 315284, 349554, 394105, 472926, 539580, 582590, 699108, 788210, 873885, 945852, 1165180, 1182315, 1339957, 1576420, 1747770, 2364630, 2679914, 3495540, 4019871, 4729260, 5359828, 6699785, 8039742, 13399570, 16079484, 20099355, 26799140, 40198710, 80397420]

約数ペア:

[(1, 80397420), (2, 40198710), (3, 26799140), (4, 20099355), (5, 16079484), (6, 13399570), (10, 8039742), (12, 6699785), (15, 5359828), (17, 4729260), (20, 4019871), (23, 3495540), (30, 2679914), (34, 2364630), (46, 1747770), (51, 1576420), (60, 1339957), (68, 1182315), (69, 1165180), (85, 945852), (92, 873885), (102, 788210), (115, 699108), (138, 582590), (149, 539580), (170, 472926), (204, 394105), (230, 349554), (255, 315284), (276, 291295), (298, 269790), (340, 236463), (345, 233036), (391, 205620), (447, 179860), (460, 174777), (510, 157642), (529, 151980), (596, 134895), (690, 116518), (745, 107916), (782, 102810), (894, 89930), (1020, 78821), (1058, 75990), (1173, 68540), (1380, 58259), (1490, 53958), (1564, 51405), (1587, 50660), (1788, 44965), (1955, 41124), (2116, 37995), (2235, 35972), (2346, 34270), (2533, 31740), (2645, 30396), (2980, 26979), (3174, 25330), (3427, 23460), (3910, 20562), (4470, 17986), (4692, 17135), (5066, 15870), (5290, 15198), (5865, 13708), (6348, 12665), (6854, 11730), (7599, 10580), (7820, 10281), (7935, 10132), (8940, 8993)]