320415620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{739}}^1$

素因数の和:937

約数の個数: 96

約数和(自身を含む): 815539200

約数和(自身を除く): 495123580

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 163, 190, 266, 326, 380, 532, 652, 665, 739, 815, 1141, 1330, 1478, 1630, 2282, 2660, 2956, 3097, 3260, 3695, 4564, 5173, 5705, 6194, 7390, 10346, 11410, 12388, 14041, 14780, 15485, 20692, 21679, 22820, 25865, 28082, 30970, 43358, 51730, 56164, 61940, 70205, 86716, 98287, 103460, 108395, 120457, 140410, 196574, 216790, 240914, 280820, 393148, 433580, 481828, 491435, 602285, 843199, 982870, 1204570, 1686398, 1965740, 2288683, 2409140, 3372796, 4215995, 4577366, 8431990, 9154732, 11443415, 16020781, 16863980, 22886830, 32041562, 45773660, 64083124, 80103905, 160207810, 320415620]

約数ペア:

[(1, 320415620), (2, 160207810), (4, 80103905), (5, 64083124), (7, 45773660), (10, 32041562), (14, 22886830), (19, 16863980), (20, 16020781), (28, 11443415), (35, 9154732), (38, 8431990), (70, 4577366), (76, 4215995), (95, 3372796), (133, 2409140), (140, 2288683), (163, 1965740), (190, 1686398), (266, 1204570), (326, 982870), (380, 843199), (532, 602285), (652, 491435), (665, 481828), (739, 433580), (815, 393148), (1141, 280820), (1330, 240914), (1478, 216790), (1630, 196574), (2282, 140410), (2660, 120457), (2956, 108395), (3097, 103460), (3260, 98287), (3695, 86716), (4564, 70205), (5173, 61940), (5705, 56164), (6194, 51730), (7390, 43358), (10346, 30970), (11410, 28082), (12388, 25865), (14041, 22820), (14780, 21679), (15485, 20692)]