20219800

素因数分解:

$2^3\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{313}}^1$

素因数の和:365

約数の個数: 96

約数和(自身を含む): 52563600

約数和(自身を除く): 32343800

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 25, 34, 38, 40, 50, 68, 76, 85, 95, 100, 136, 152, 170, 190, 200, 313, 323, 340, 380, 425, 475, 626, 646, 680, 760, 850, 950, 1252, 1292, 1565, 1615, 1700, 1900, 2504, 2584, 3130, 3230, 3400, 3800, 5321, 5947, 6260, 6460, 7825, 8075, 10642, 11894, 12520, 12920, 15650, 16150, 21284, 23788, 26605, 29735, 31300, 32300, 42568, 47576, 53210, 59470, 62600, 64600, 101099, 106420, 118940, 133025, 148675, 202198, 212840, 237880, 266050, 297350, 404396, 505495, 532100, 594700, 808792, 1010990, 1064200, 1189400, 2021980, 2527475, 4043960, 5054950, 10109900, 20219800]

約数ペア:

[(1, 20219800), (2, 10109900), (4, 5054950), (5, 4043960), (8, 2527475), (10, 2021980), (17, 1189400), (19, 1064200), (20, 1010990), (25, 808792), (34, 594700), (38, 532100), (40, 505495), (50, 404396), (68, 297350), (76, 266050), (85, 237880), (95, 212840), (100, 202198), (136, 148675), (152, 133025), (170, 118940), (190, 106420), (200, 101099), (313, 64600), (323, 62600), (340, 59470), (380, 53210), (425, 47576), (475, 42568), (626, 32300), (646, 31300), (680, 29735), (760, 26605), (850, 23788), (950, 21284), (1252, 16150), (1292, 15650), (1565, 12920), (1615, 12520), (1700, 11894), (1900, 10642), (2504, 8075), (2584, 7825), (3130, 6460), (3230, 6260), (3400, 5947), (3800, 5321)]