19786650

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:240

約数の個数: 96

約数和(自身を含む): 53954880

約数和(自身を除く): 34168230

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 73, 75, 78, 130, 139, 146, 150, 195, 219, 278, 325, 365, 390, 417, 438, 650, 695, 730, 834, 949, 975, 1095, 1390, 1807, 1825, 1898, 1950, 2085, 2190, 2847, 3475, 3614, 3650, 4170, 4745, 5421, 5475, 5694, 6950, 9035, 9490, 10147, 10425, 10842, 10950, 14235, 18070, 20294, 20850, 23725, 27105, 28470, 30441, 45175, 47450, 50735, 54210, 60882, 71175, 90350, 101470, 131911, 135525, 142350, 152205, 253675, 263822, 271050, 304410, 395733, 507350, 659555, 761025, 791466, 1319110, 1522050, 1978665, 3297775, 3957330, 6595550, 9893325, 19786650]

約数ペア:

[(1, 19786650), (2, 9893325), (3, 6595550), (5, 3957330), (6, 3297775), (10, 1978665), (13, 1522050), (15, 1319110), (25, 791466), (26, 761025), (30, 659555), (39, 507350), (50, 395733), (65, 304410), (73, 271050), (75, 263822), (78, 253675), (130, 152205), (139, 142350), (146, 135525), (150, 131911), (195, 101470), (219, 90350), (278, 71175), (325, 60882), (365, 54210), (390, 50735), (417, 47450), (438, 45175), (650, 30441), (695, 28470), (730, 27105), (834, 23725), (949, 20850), (975, 20294), (1095, 18070), (1390, 14235), (1807, 10950), (1825, 10842), (1898, 10425), (1950, 10147), (2085, 9490), (2190, 9035), (2847, 6950), (3475, 5694), (3614, 5475), (3650, 5421), (4170, 4745)]