9781825100

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1\times {\mathrm{631}}^1$

素因数の和:904

約数の個数: 144

約数和(自身を含む): 23040192000

約数和(自身を除く): 13258366900

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 41, 50, 76, 82, 95, 100, 164, 190, 199, 205, 380, 398, 410, 475, 631, 779, 796, 820, 950, 995, 1025, 1262, 1558, 1900, 1990, 2050, 2524, 3116, 3155, 3781, 3895, 3980, 4100, 4975, 6310, 7562, 7790, 8159, 9950, 11989, 12620, 15124, 15580, 15775, 16318, 18905, 19475, 19900, 23978, 25871, 31550, 32636, 37810, 38950, 40795, 47956, 51742, 59945, 63100, 75620, 77900, 81590, 94525, 103484, 119890, 125569, 129355, 155021, 163180, 189050, 203975, 239780, 251138, 258710, 299725, 310042, 378100, 407950, 491549, 502276, 517420, 599450, 620084, 627845, 646775, 775105, 815900, 983098, 1198900, 1255690, 1293550, 1550210, 1966196, 2385811, 2457745, 2511380, 2587100, 3100420, 3139225, 3875525, 4771622, 4915490, 5148329, 6278450, 7751050, 9543244, 9830980, 10296658, 11929055, 12288725, 12556900, 15502100, 20593316, 23858110, 24577450, 25741645, 47716220, 49154900, 51483290, 59645275, 97818251, 102966580, 119290550, 128708225, 195636502, 238581100, 257416450, 391273004, 489091255, 514832900, 978182510, 1956365020, 2445456275, 4890912550, 9781825100]

約数ペア:

[(1, 9781825100), (2, 4890912550), (4, 2445456275), (5, 1956365020), (10, 978182510), (19, 514832900), (20, 489091255), (25, 391273004), (38, 257416450), (41, 238581100), (50, 195636502), (76, 128708225), (82, 119290550), (95, 102966580), (100, 97818251), (164, 59645275), (190, 51483290), (199, 49154900), (205, 47716220), (380, 25741645), (398, 24577450), (410, 23858110), (475, 20593316), (631, 15502100), (779, 12556900), (796, 12288725), (820, 11929055), (950, 10296658), (995, 9830980), (1025, 9543244), (1262, 7751050), (1558, 6278450), (1900, 5148329), (1990, 4915490), (2050, 4771622), (2524, 3875525), (3116, 3139225), (3155, 3100420), (3781, 2587100), (3895, 2511380), (3980, 2457745), (4100, 2385811), (4975, 1966196), (6310, 1550210), (7562, 1293550), (7790, 1255690), (8159, 1198900), (9950, 983098), (11989, 815900), (12620, 775105), (15124, 646775), (15580, 627845), (15775, 620084), (16318, 599450), (18905, 517420), (19475, 502276), (19900, 491549), (23978, 407950), (25871, 378100), (31550, 310042), (32636, 299725), (37810, 258710), (38950, 251138), (40795, 239780), (47956, 203975), (51742, 189050), (59945, 163180), (63100, 155021), (75620, 129355), (77900, 125569), (81590, 119890), (94525, 103484)]