19923020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1$

素因数の和:187

約数の個数: 96

約数和(自身を含む): 49156800

約数和(自身を除く): 29233780

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 37, 38, 52, 65, 74, 76, 95, 109, 130, 148, 185, 190, 218, 247, 260, 370, 380, 436, 481, 494, 545, 703, 740, 962, 988, 1090, 1235, 1406, 1417, 1924, 2071, 2180, 2405, 2470, 2812, 2834, 3515, 4033, 4142, 4810, 4940, 5668, 7030, 7085, 8066, 8284, 9139, 9620, 10355, 14060, 14170, 16132, 18278, 20165, 20710, 26923, 28340, 36556, 40330, 41420, 45695, 52429, 53846, 76627, 80660, 91390, 104858, 107692, 134615, 153254, 182780, 209716, 262145, 269230, 306508, 383135, 524290, 538460, 766270, 996151, 1048580, 1532540, 1992302, 3984604, 4980755, 9961510, 19923020]

約数ペア:

[(1, 19923020), (2, 9961510), (4, 4980755), (5, 3984604), (10, 1992302), (13, 1532540), (19, 1048580), (20, 996151), (26, 766270), (37, 538460), (38, 524290), (52, 383135), (65, 306508), (74, 269230), (76, 262145), (95, 209716), (109, 182780), (130, 153254), (148, 134615), (185, 107692), (190, 104858), (218, 91390), (247, 80660), (260, 76627), (370, 53846), (380, 52429), (436, 45695), (481, 41420), (494, 40330), (545, 36556), (703, 28340), (740, 26923), (962, 20710), (988, 20165), (1090, 18278), (1235, 16132), (1406, 14170), (1417, 14060), (1924, 10355), (2071, 9620), (2180, 9139), (2405, 8284), (2470, 8066), (2812, 7085), (2834, 7030), (3515, 5668), (4033, 4940), (4142, 4810)]