25189580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1$

素因数の和:219

約数の個数: 96

約数和(自身を含む): 62233920

約数和(自身を除く): 37044340

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 41, 52, 65, 68, 82, 85, 130, 139, 164, 170, 205, 221, 260, 278, 340, 410, 442, 533, 556, 695, 697, 820, 884, 1066, 1105, 1390, 1394, 1807, 2132, 2210, 2363, 2665, 2780, 2788, 3485, 3614, 4420, 4726, 5330, 5699, 6970, 7228, 9035, 9061, 9452, 10660, 11398, 11815, 13940, 18070, 18122, 22796, 23630, 28495, 30719, 36140, 36244, 45305, 47260, 56990, 61438, 74087, 90610, 96883, 113980, 122876, 148174, 153595, 181220, 193766, 296348, 307190, 370435, 387532, 484415, 614380, 740870, 968830, 1259479, 1481740, 1937660, 2518958, 5037916, 6297395, 12594790, 25189580]

約数ペア:

[(1, 25189580), (2, 12594790), (4, 6297395), (5, 5037916), (10, 2518958), (13, 1937660), (17, 1481740), (20, 1259479), (26, 968830), (34, 740870), (41, 614380), (52, 484415), (65, 387532), (68, 370435), (82, 307190), (85, 296348), (130, 193766), (139, 181220), (164, 153595), (170, 148174), (205, 122876), (221, 113980), (260, 96883), (278, 90610), (340, 74087), (410, 61438), (442, 56990), (533, 47260), (556, 45305), (695, 36244), (697, 36140), (820, 30719), (884, 28495), (1066, 23630), (1105, 22796), (1390, 18122), (1394, 18070), (1807, 13940), (2132, 11815), (2210, 11398), (2363, 10660), (2665, 9452), (2780, 9061), (2788, 9035), (3485, 7228), (3614, 6970), (4420, 5699), (4726, 5330)]