20198750

素因数分解:

$2^1\times 5^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1$

素因数の和:159

約数の個数: 80

約数和(自身を含む): 44873136

約数和(自身を除く): 24674386

約数列:

[1, 2, 5, 10, 11, 13, 22, 25, 26, 50, 55, 65, 110, 113, 125, 130, 143, 226, 250, 275, 286, 325, 550, 565, 625, 650, 715, 1130, 1243, 1250, 1375, 1430, 1469, 1625, 2486, 2750, 2825, 2938, 3250, 3575, 5650, 6215, 6875, 7150, 7345, 8125, 12430, 13750, 14125, 14690, 16159, 16250, 17875, 28250, 31075, 32318, 35750, 36725, 62150, 70625, 73450, 80795, 89375, 141250, 155375, 161590, 178750, 183625, 310750, 367250, 403975, 776875, 807950, 918125, 1553750, 1836250, 2019875, 4039750, 10099375, 20198750]

約数ペア:

[(1, 20198750), (2, 10099375), (5, 4039750), (10, 2019875), (11, 1836250), (13, 1553750), (22, 918125), (25, 807950), (26, 776875), (50, 403975), (55, 367250), (65, 310750), (110, 183625), (113, 178750), (125, 161590), (130, 155375), (143, 141250), (226, 89375), (250, 80795), (275, 73450), (286, 70625), (325, 62150), (550, 36725), (565, 35750), (625, 32318), (650, 31075), (715, 28250), (1130, 17875), (1243, 16250), (1250, 16159), (1375, 14690), (1430, 14125), (1469, 13750), (1625, 12430), (2486, 8125), (2750, 7345), (2825, 7150), (2938, 6875), (3250, 6215), (3575, 5650)]