20390650

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1$

素因数の和:208

約数の個数: 96

約数和(自身を含む): 48211200

約数和(自身を除く): 27820550

約数列:

[1, 2, 5, 7, 10, 14, 17, 23, 25, 34, 35, 46, 50, 70, 85, 115, 119, 149, 161, 170, 175, 230, 238, 298, 322, 350, 391, 425, 575, 595, 745, 782, 805, 850, 1043, 1150, 1190, 1490, 1610, 1955, 2086, 2533, 2737, 2975, 3427, 3725, 3910, 4025, 5066, 5215, 5474, 5950, 6854, 7450, 8050, 9775, 10430, 12665, 13685, 17135, 17731, 19550, 23989, 25330, 26075, 27370, 34270, 35462, 47978, 52150, 58259, 63325, 68425, 85675, 88655, 116518, 119945, 126650, 136850, 171350, 177310, 239890, 291295, 407813, 443275, 582590, 599725, 815626, 886550, 1199450, 1456475, 2039065, 2912950, 4078130, 10195325, 20390650]

約数ペア:

[(1, 20390650), (2, 10195325), (5, 4078130), (7, 2912950), (10, 2039065), (14, 1456475), (17, 1199450), (23, 886550), (25, 815626), (34, 599725), (35, 582590), (46, 443275), (50, 407813), (70, 291295), (85, 239890), (115, 177310), (119, 171350), (149, 136850), (161, 126650), (170, 119945), (175, 116518), (230, 88655), (238, 85675), (298, 68425), (322, 63325), (350, 58259), (391, 52150), (425, 47978), (575, 35462), (595, 34270), (745, 27370), (782, 26075), (805, 25330), (850, 23989), (1043, 19550), (1150, 17731), (1190, 17135), (1490, 13685), (1610, 12665), (1955, 10430), (2086, 9775), (2533, 8050), (2737, 7450), (2975, 6854), (3427, 5950), (3725, 5474), (3910, 5215), (4025, 5066)]