20346784220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{449951}}^1$

素因数の和:450003

約数の個数: 96

約数和(自身を含む): 54426193920

約数和(自身を除く): 34079409700

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 19, 20, 28, 34, 35, 38, 68, 70, 76, 85, 95, 119, 133, 140, 170, 190, 238, 266, 323, 340, 380, 476, 532, 595, 646, 665, 1190, 1292, 1330, 1615, 2261, 2380, 2660, 3230, 4522, 6460, 9044, 11305, 22610, 45220, 449951, 899902, 1799804, 2249755, 3149657, 4499510, 6299314, 7649167, 8549069, 8999020, 12598628, 15298334, 15748285, 17098138, 30596668, 31496570, 34196276, 38245835, 42745345, 53544169, 59843483, 62993140, 76491670, 85490690, 107088338, 119686966, 145334173, 152983340, 170981380, 214176676, 239373932, 267720845, 290668346, 299217415, 535441690, 581336692, 598434830, 726670865, 1017339211, 1070883380, 1196869660, 1453341730, 2034678422, 2906683460, 4069356844, 5086696055, 10173392110, 20346784220]

約数ペア:

[(1, 20346784220), (2, 10173392110), (4, 5086696055), (5, 4069356844), (7, 2906683460), (10, 2034678422), (14, 1453341730), (17, 1196869660), (19, 1070883380), (20, 1017339211), (28, 726670865), (34, 598434830), (35, 581336692), (38, 535441690), (68, 299217415), (70, 290668346), (76, 267720845), (85, 239373932), (95, 214176676), (119, 170981380), (133, 152983340), (140, 145334173), (170, 119686966), (190, 107088338), (238, 85490690), (266, 76491670), (323, 62993140), (340, 59843483), (380, 53544169), (476, 42745345), (532, 38245835), (595, 34196276), (646, 31496570), (665, 30596668), (1190, 17098138), (1292, 15748285), (1330, 15298334), (1615, 12598628), (2261, 8999020), (2380, 8549069), (2660, 7649167), (3230, 6299314), (4522, 4499510), (6460, 3149657), (9044, 2249755), (11305, 1799804), (22610, 899902), (45220, 449951)]