389640220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{281}}^1$

素因数の和:439

約数の個数: 96

約数和(自身を含む): 895406400

約数和(自身を除く): 505766180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 89, 95, 164, 178, 190, 205, 281, 356, 380, 410, 445, 562, 779, 820, 890, 1124, 1405, 1558, 1691, 1780, 2810, 3116, 3382, 3649, 3895, 5339, 5620, 6764, 7298, 7790, 8455, 10678, 11521, 14596, 15580, 16910, 18245, 21356, 23042, 25009, 26695, 33820, 36490, 46084, 50018, 53390, 57605, 69331, 72980, 100036, 106780, 115210, 125045, 138662, 218899, 230420, 250090, 277324, 346655, 437798, 475171, 500180, 693310, 875596, 950342, 1025369, 1094495, 1386620, 1900684, 2050738, 2188990, 2375855, 4101476, 4377980, 4751710, 5126845, 9503420, 10253690, 19482011, 20507380, 38964022, 77928044, 97410055, 194820110, 389640220]

約数ペア:

[(1, 389640220), (2, 194820110), (4, 97410055), (5, 77928044), (10, 38964022), (19, 20507380), (20, 19482011), (38, 10253690), (41, 9503420), (76, 5126845), (82, 4751710), (89, 4377980), (95, 4101476), (164, 2375855), (178, 2188990), (190, 2050738), (205, 1900684), (281, 1386620), (356, 1094495), (380, 1025369), (410, 950342), (445, 875596), (562, 693310), (779, 500180), (820, 475171), (890, 437798), (1124, 346655), (1405, 277324), (1558, 250090), (1691, 230420), (1780, 218899), (2810, 138662), (3116, 125045), (3382, 115210), (3649, 106780), (3895, 100036), (5339, 72980), (5620, 69331), (6764, 57605), (7298, 53390), (7790, 50018), (8455, 46084), (10678, 36490), (11521, 33820), (14596, 26695), (15580, 25009), (16910, 23042), (18245, 21356)]