391331640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{66553}}^1$

素因数の和:66581

約数の個数: 96

約数和(自身を含む): 1365688080

約数和(自身を除く): 974356440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 84, 98, 105, 120, 140, 147, 168, 196, 210, 245, 280, 294, 392, 420, 490, 588, 735, 840, 980, 1176, 1470, 1960, 2940, 5880, 66553, 133106, 199659, 266212, 332765, 399318, 465871, 532424, 665530, 798636, 931742, 998295, 1331060, 1397613, 1597272, 1863484, 1996590, 2329355, 2662120, 2795226, 3261097, 3726968, 3993180, 4658710, 5590452, 6522194, 6988065, 7986360, 9317420, 9783291, 11180904, 13044388, 13976130, 16305485, 18634840, 19566582, 26088776, 27952260, 32610970, 39133164, 48916455, 55904520, 65221940, 78266328, 97832910, 130443880, 195665820, 391331640]

約数ペア:

[(1, 391331640), (2, 195665820), (3, 130443880), (4, 97832910), (5, 78266328), (6, 65221940), (7, 55904520), (8, 48916455), (10, 39133164), (12, 32610970), (14, 27952260), (15, 26088776), (20, 19566582), (21, 18634840), (24, 16305485), (28, 13976130), (30, 13044388), (35, 11180904), (40, 9783291), (42, 9317420), (49, 7986360), (56, 6988065), (60, 6522194), (70, 5590452), (84, 4658710), (98, 3993180), (105, 3726968), (120, 3261097), (140, 2795226), (147, 2662120), (168, 2329355), (196, 1996590), (210, 1863484), (245, 1597272), (280, 1397613), (294, 1331060), (392, 998295), (420, 931742), (490, 798636), (588, 665530), (735, 532424), (840, 465871), (980, 399318), (1176, 332765), (1470, 266212), (1960, 199659), (2940, 133106), (5880, 66553)]