19120240

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^2\times {\mathrm{827}}^1$

素因数の和:874

約数の個数: 60

約数和(自身を含む): 47280456

約数和(自身を除く): 28160216

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 289, 340, 578, 680, 827, 1156, 1360, 1445, 1654, 2312, 2890, 3308, 4135, 4624, 5780, 6616, 8270, 11560, 13232, 14059, 16540, 23120, 28118, 33080, 56236, 66160, 70295, 112472, 140590, 224944, 239003, 281180, 478006, 562360, 956012, 1124720, 1195015, 1912024, 2390030, 3824048, 4780060, 9560120, 19120240]

約数ペア:

[(1, 19120240), (2, 9560120), (4, 4780060), (5, 3824048), (8, 2390030), (10, 1912024), (16, 1195015), (17, 1124720), (20, 956012), (34, 562360), (40, 478006), (68, 281180), (80, 239003), (85, 224944), (136, 140590), (170, 112472), (272, 70295), (289, 66160), (340, 56236), (578, 33080), (680, 28118), (827, 23120), (1156, 16540), (1360, 14059), (1445, 13232), (1654, 11560), (2312, 8270), (2890, 6616), (3308, 5780), (4135, 4624)]