19541500

素因数分解:

$2^2\times 5^3\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:77

約数の個数: 144

約数和(自身を含む): 52284960

約数和(自身を除く): 32743460

約数列:

[1, 2, 4, 5, 10, 11, 17, 19, 20, 22, 25, 34, 38, 44, 50, 55, 68, 76, 85, 95, 100, 110, 121, 125, 170, 187, 190, 209, 220, 242, 250, 275, 323, 340, 374, 380, 418, 425, 475, 484, 500, 550, 605, 646, 748, 836, 850, 935, 950, 1045, 1100, 1210, 1292, 1375, 1615, 1700, 1870, 1900, 2057, 2090, 2125, 2299, 2375, 2420, 2750, 3025, 3230, 3553, 3740, 4114, 4180, 4250, 4598, 4675, 4750, 5225, 5500, 6050, 6460, 7106, 8075, 8228, 8500, 9196, 9350, 9500, 10285, 10450, 11495, 12100, 14212, 15125, 16150, 17765, 18700, 20570, 20900, 22990, 23375, 26125, 30250, 32300, 35530, 39083, 40375, 41140, 45980, 46750, 51425, 52250, 57475, 60500, 71060, 78166, 80750, 88825, 93500, 102850, 104500, 114950, 156332, 161500, 177650, 195415, 205700, 229900, 257125, 287375, 355300, 390830, 444125, 514250, 574750, 781660, 888250, 977075, 1028500, 1149500, 1776500, 1954150, 3908300, 4885375, 9770750, 19541500]

約数ペア:

[(1, 19541500), (2, 9770750), (4, 4885375), (5, 3908300), (10, 1954150), (11, 1776500), (17, 1149500), (19, 1028500), (20, 977075), (22, 888250), (25, 781660), (34, 574750), (38, 514250), (44, 444125), (50, 390830), (55, 355300), (68, 287375), (76, 257125), (85, 229900), (95, 205700), (100, 195415), (110, 177650), (121, 161500), (125, 156332), (170, 114950), (187, 104500), (190, 102850), (209, 93500), (220, 88825), (242, 80750), (250, 78166), (275, 71060), (323, 60500), (340, 57475), (374, 52250), (380, 51425), (418, 46750), (425, 45980), (475, 41140), (484, 40375), (500, 39083), (550, 35530), (605, 32300), (646, 30250), (748, 26125), (836, 23375), (850, 22990), (935, 20900), (950, 20570), (1045, 18700), (1100, 17765), (1210, 16150), (1292, 15125), (1375, 14212), (1615, 12100), (1700, 11495), (1870, 10450), (1900, 10285), (2057, 9500), (2090, 9350), (2125, 9196), (2299, 8500), (2375, 8228), (2420, 8075), (2750, 7106), (3025, 6460), (3230, 6050), (3553, 5500), (3740, 5225), (4114, 4750), (4180, 4675), (4250, 4598)]