19547960

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1$

素因数の和:153

約数の個数: 96

約数和(自身を含む): 49734000

約数和(自身を除く): 30186040

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 68, 76, 85, 89, 95, 136, 152, 170, 178, 190, 289, 323, 340, 356, 380, 445, 578, 646, 680, 712, 760, 890, 1156, 1292, 1445, 1513, 1615, 1691, 1780, 2312, 2584, 2890, 3026, 3230, 3382, 3560, 5491, 5780, 6052, 6460, 6764, 7565, 8455, 10982, 11560, 12104, 12920, 13528, 15130, 16910, 21964, 25721, 27455, 28747, 30260, 33820, 43928, 51442, 54910, 57494, 60520, 67640, 102884, 109820, 114988, 128605, 143735, 205768, 219640, 229976, 257210, 287470, 488699, 514420, 574940, 977398, 1028840, 1149880, 1954796, 2443495, 3909592, 4886990, 9773980, 19547960]

約数ペア:

[(1, 19547960), (2, 9773980), (4, 4886990), (5, 3909592), (8, 2443495), (10, 1954796), (17, 1149880), (19, 1028840), (20, 977398), (34, 574940), (38, 514420), (40, 488699), (68, 287470), (76, 257210), (85, 229976), (89, 219640), (95, 205768), (136, 143735), (152, 128605), (170, 114988), (178, 109820), (190, 102884), (289, 67640), (323, 60520), (340, 57494), (356, 54910), (380, 51442), (445, 43928), (578, 33820), (646, 30260), (680, 28747), (712, 27455), (760, 25721), (890, 21964), (1156, 16910), (1292, 15130), (1445, 13528), (1513, 12920), (1615, 12104), (1691, 11560), (1780, 10982), (2312, 8455), (2584, 7565), (2890, 6764), (3026, 6460), (3230, 6052), (3382, 5780), (3560, 5491)]