20041781780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1303}}^1\times {\mathrm{2381}}^1$

素因数の和:3729

約数の個数: 96

約数和(自身を含む): 46964655360

約数和(自身を除く): 26922873580

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 323, 340, 380, 646, 1292, 1303, 1615, 2381, 2606, 3230, 4762, 5212, 6460, 6515, 9524, 11905, 13030, 22151, 23810, 24757, 26060, 40477, 44302, 45239, 47620, 49514, 80954, 88604, 90478, 99028, 110755, 123785, 161908, 180956, 202385, 221510, 226195, 247570, 404770, 420869, 443020, 452390, 495140, 769063, 809540, 841738, 904780, 1538126, 1683476, 2104345, 3076252, 3102443, 3845315, 4208690, 6204886, 7690630, 8417380, 12409772, 15381260, 15512215, 31024430, 52741531, 58946417, 62048860, 105483062, 117892834, 210966124, 235785668, 263707655, 294732085, 527415310, 589464170, 1002089089, 1054830620, 1178928340, 2004178178, 4008356356, 5010445445, 10020890890, 20041781780]

約数ペア:

[(1, 20041781780), (2, 10020890890), (4, 5010445445), (5, 4008356356), (10, 2004178178), (17, 1178928340), (19, 1054830620), (20, 1002089089), (34, 589464170), (38, 527415310), (68, 294732085), (76, 263707655), (85, 235785668), (95, 210966124), (170, 117892834), (190, 105483062), (323, 62048860), (340, 58946417), (380, 52741531), (646, 31024430), (1292, 15512215), (1303, 15381260), (1615, 12409772), (2381, 8417380), (2606, 7690630), (3230, 6204886), (4762, 4208690), (5212, 3845315), (6460, 3102443), (6515, 3076252), (9524, 2104345), (11905, 1683476), (13030, 1538126), (22151, 904780), (23810, 841738), (24757, 809540), (26060, 769063), (40477, 495140), (44302, 452390), (45239, 443020), (47620, 420869), (49514, 404770), (80954, 247570), (88604, 226195), (90478, 221510), (99028, 202385), (110755, 180956), (123785, 161908)]