128440260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{419}}^1$

素因数の和:578

約数の個数: 144

約数和(自身を含む): 423783360

約数和(自身を除く): 295343100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 131, 156, 180, 195, 234, 260, 262, 390, 393, 419, 468, 524, 585, 655, 780, 786, 838, 1170, 1179, 1257, 1310, 1572, 1676, 1703, 1965, 2095, 2340, 2358, 2514, 2620, 3406, 3771, 3930, 4190, 4716, 5028, 5109, 5447, 5895, 6285, 6812, 7542, 7860, 8380, 8515, 10218, 10894, 11790, 12570, 15084, 15327, 16341, 17030, 18855, 20436, 21788, 23580, 25140, 25545, 27235, 30654, 32682, 34060, 37710, 49023, 51090, 54470, 54889, 61308, 65364, 75420, 76635, 81705, 98046, 102180, 108940, 109778, 153270, 163410, 164667, 196092, 219556, 245115, 274445, 306540, 326820, 329334, 490230, 494001, 548890, 658668, 713557, 823335, 980460, 988002, 1097780, 1427114, 1646670, 1976004, 2140671, 2470005, 2854228, 3293340, 3567785, 4281342, 4940010, 6422013, 7135570, 8562684, 9880020, 10703355, 12844026, 14271140, 21406710, 25688052, 32110065, 42813420, 64220130, 128440260]

約数ペア:

[(1, 128440260), (2, 64220130), (3, 42813420), (4, 32110065), (5, 25688052), (6, 21406710), (9, 14271140), (10, 12844026), (12, 10703355), (13, 9880020), (15, 8562684), (18, 7135570), (20, 6422013), (26, 4940010), (30, 4281342), (36, 3567785), (39, 3293340), (45, 2854228), (52, 2470005), (60, 2140671), (65, 1976004), (78, 1646670), (90, 1427114), (117, 1097780), (130, 988002), (131, 980460), (156, 823335), (180, 713557), (195, 658668), (234, 548890), (260, 494001), (262, 490230), (390, 329334), (393, 326820), (419, 306540), (468, 274445), (524, 245115), (585, 219556), (655, 196092), (780, 164667), (786, 163410), (838, 153270), (1170, 109778), (1179, 108940), (1257, 102180), (1310, 98046), (1572, 81705), (1676, 76635), (1703, 75420), (1965, 65364), (2095, 61308), (2340, 54889), (2358, 54470), (2514, 51090), (2620, 49023), (3406, 37710), (3771, 34060), (3930, 32682), (4190, 30654), (4716, 27235), (5028, 25545), (5109, 25140), (5447, 23580), (5895, 21788), (6285, 20436), (6812, 18855), (7542, 17030), (7860, 16341), (8380, 15327), (8515, 15084), (10218, 12570), (10894, 11790)]