20889750

素因数分解:

$2^1\times 3^1\times 5^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1$

素因数の和:223

約数の個数: 128

約数和(自身を含む): 62539776

約数和(自身を除く): 41650026

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 23, 25, 30, 35, 42, 46, 50, 69, 70, 75, 105, 115, 125, 138, 150, 161, 173, 175, 210, 230, 250, 322, 345, 346, 350, 375, 483, 519, 525, 575, 690, 750, 805, 865, 875, 966, 1038, 1050, 1150, 1211, 1610, 1725, 1730, 1750, 2415, 2422, 2595, 2625, 2875, 3450, 3633, 3979, 4025, 4325, 4830, 5190, 5250, 5750, 6055, 7266, 7958, 8050, 8625, 8650, 11937, 12075, 12110, 12975, 17250, 18165, 19895, 20125, 21625, 23874, 24150, 25950, 27853, 30275, 36330, 39790, 40250, 43250, 55706, 59685, 60375, 60550, 64875, 83559, 90825, 99475, 119370, 120750, 129750, 139265, 151375, 167118, 181650, 198950, 278530, 298425, 302750, 417795, 454125, 497375, 596850, 696325, 835590, 908250, 994750, 1392650, 1492125, 2088975, 2984250, 3481625, 4177950, 6963250, 10444875, 20889750]

約数ペア:

[(1, 20889750), (2, 10444875), (3, 6963250), (5, 4177950), (6, 3481625), (7, 2984250), (10, 2088975), (14, 1492125), (15, 1392650), (21, 994750), (23, 908250), (25, 835590), (30, 696325), (35, 596850), (42, 497375), (46, 454125), (50, 417795), (69, 302750), (70, 298425), (75, 278530), (105, 198950), (115, 181650), (125, 167118), (138, 151375), (150, 139265), (161, 129750), (173, 120750), (175, 119370), (210, 99475), (230, 90825), (250, 83559), (322, 64875), (345, 60550), (346, 60375), (350, 59685), (375, 55706), (483, 43250), (519, 40250), (525, 39790), (575, 36330), (690, 30275), (750, 27853), (805, 25950), (865, 24150), (875, 23874), (966, 21625), (1038, 20125), (1050, 19895), (1150, 18165), (1211, 17250), (1610, 12975), (1725, 12110), (1730, 12075), (1750, 11937), (2415, 8650), (2422, 8625), (2595, 8050), (2625, 7958), (2875, 7266), (3450, 6055), (3633, 5750), (3979, 5250), (4025, 5190), (4325, 4830)]