78780780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{257}}^1$

素因数の和:416

約数の個数: 144

約数和(自身を含む): 260324064

約数和(自身を除く): 181543284

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, 257, 260, 262, 390, 393, 468, 514, 524, 585, 655, 771, 780, 786, 1028, 1170, 1179, 1285, 1310, 1542, 1572, 1703, 1965, 2313, 2340, 2358, 2570, 2620, 3084, 3341, 3406, 3855, 3930, 4626, 4716, 5109, 5140, 5895, 6682, 6812, 7710, 7860, 8515, 9252, 10023, 10218, 11565, 11790, 13364, 15327, 15420, 16705, 17030, 20046, 20436, 23130, 23580, 25545, 30069, 30654, 33410, 33667, 34060, 40092, 46260, 50115, 51090, 60138, 61308, 66820, 67334, 76635, 100230, 101001, 102180, 120276, 134668, 150345, 153270, 168335, 200460, 202002, 300690, 303003, 306540, 336670, 404004, 437671, 505005, 601380, 606006, 673340, 875342, 1010010, 1212012, 1313013, 1515015, 1750684, 2020020, 2188355, 2626026, 3030030, 3939039, 4376710, 5252052, 6060060, 6565065, 7878078, 8753420, 13130130, 15756156, 19695195, 26260260, 39390390, 78780780]

約数ペア:

[(1, 78780780), (2, 39390390), (3, 26260260), (4, 19695195), (5, 15756156), (6, 13130130), (9, 8753420), (10, 7878078), (12, 6565065), (13, 6060060), (15, 5252052), (18, 4376710), (20, 3939039), (26, 3030030), (30, 2626026), (36, 2188355), (39, 2020020), (45, 1750684), (52, 1515015), (60, 1313013), (65, 1212012), (78, 1010010), (90, 875342), (117, 673340), (130, 606006), (131, 601380), (156, 505005), (180, 437671), (195, 404004), (234, 336670), (257, 306540), (260, 303003), (262, 300690), (390, 202002), (393, 200460), (468, 168335), (514, 153270), (524, 150345), (585, 134668), (655, 120276), (771, 102180), (780, 101001), (786, 100230), (1028, 76635), (1170, 67334), (1179, 66820), (1285, 61308), (1310, 60138), (1542, 51090), (1572, 50115), (1703, 46260), (1965, 40092), (2313, 34060), (2340, 33667), (2358, 33410), (2570, 30654), (2620, 30069), (3084, 25545), (3341, 23580), (3406, 23130), (3855, 20436), (3930, 20046), (4626, 17030), (4716, 16705), (5109, 15420), (5140, 15327), (5895, 13364), (6682, 11790), (6812, 11565), (7710, 10218), (7860, 10023), (8515, 9252)]