205253790

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{769}}^1$

素因数の和:858

約数の個数: 128

約数和(自身を含む): 596090880

約数和(自身を除く): 390837090

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 31, 35, 41, 42, 62, 70, 82, 93, 105, 123, 155, 186, 205, 210, 217, 246, 287, 310, 410, 434, 465, 574, 615, 651, 769, 861, 930, 1085, 1230, 1271, 1302, 1435, 1538, 1722, 2170, 2307, 2542, 2870, 3255, 3813, 3845, 4305, 4614, 5383, 6355, 6510, 7626, 7690, 8610, 8897, 10766, 11535, 12710, 16149, 17794, 19065, 23070, 23839, 26691, 26915, 31529, 32298, 38130, 44485, 47678, 53382, 53830, 63058, 71517, 80745, 88970, 94587, 119195, 133455, 143034, 157645, 161490, 166873, 189174, 220703, 238390, 266910, 315290, 333746, 357585, 441406, 472935, 500619, 662109, 715170, 834365, 945870, 977399, 1001238, 1103515, 1324218, 1668730, 1954798, 2207030, 2503095, 2932197, 3310545, 4886995, 5006190, 5864394, 6621090, 6841793, 9773990, 13683586, 14660985, 20525379, 29321970, 34208965, 41050758, 68417930, 102626895, 205253790]

約数ペア:

[(1, 205253790), (2, 102626895), (3, 68417930), (5, 41050758), (6, 34208965), (7, 29321970), (10, 20525379), (14, 14660985), (15, 13683586), (21, 9773990), (30, 6841793), (31, 6621090), (35, 5864394), (41, 5006190), (42, 4886995), (62, 3310545), (70, 2932197), (82, 2503095), (93, 2207030), (105, 1954798), (123, 1668730), (155, 1324218), (186, 1103515), (205, 1001238), (210, 977399), (217, 945870), (246, 834365), (287, 715170), (310, 662109), (410, 500619), (434, 472935), (465, 441406), (574, 357585), (615, 333746), (651, 315290), (769, 266910), (861, 238390), (930, 220703), (1085, 189174), (1230, 166873), (1271, 161490), (1302, 157645), (1435, 143034), (1538, 133455), (1722, 119195), (2170, 94587), (2307, 88970), (2542, 80745), (2870, 71517), (3255, 63058), (3813, 53830), (3845, 53382), (4305, 47678), (4614, 44485), (5383, 38130), (6355, 32298), (6510, 31529), (7626, 26915), (7690, 26691), (8610, 23839), (8897, 23070), (10766, 19065), (11535, 17794), (12710, 16149)]