78640380

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4801}}^1$

素因数の和:4836

約数の個数: 144

約数和(自身を含む): 293651904

約数和(自身を除く): 215011524

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 28, 30, 35, 36, 39, 42, 45, 52, 60, 63, 65, 70, 78, 84, 90, 91, 105, 117, 126, 130, 140, 156, 180, 182, 195, 210, 234, 252, 260, 273, 315, 364, 390, 420, 455, 468, 546, 585, 630, 780, 819, 910, 1092, 1170, 1260, 1365, 1638, 1820, 2340, 2730, 3276, 4095, 4801, 5460, 8190, 9602, 14403, 16380, 19204, 24005, 28806, 33607, 43209, 48010, 57612, 62413, 67214, 72015, 86418, 96020, 100821, 124826, 134428, 144030, 168035, 172836, 187239, 201642, 216045, 249652, 288060, 302463, 312065, 336070, 374478, 403284, 432090, 436891, 504105, 561717, 604926, 624130, 672140, 748956, 864180, 873782, 936195, 1008210, 1123434, 1209852, 1248260, 1310673, 1512315, 1747564, 1872390, 2016420, 2184455, 2246868, 2621346, 2808585, 3024630, 3744780, 3932019, 4368910, 5242692, 5617170, 6049260, 6553365, 7864038, 8737820, 11234340, 13106730, 15728076, 19660095, 26213460, 39320190, 78640380]

約数ペア:

[(1, 78640380), (2, 39320190), (3, 26213460), (4, 19660095), (5, 15728076), (6, 13106730), (7, 11234340), (9, 8737820), (10, 7864038), (12, 6553365), (13, 6049260), (14, 5617170), (15, 5242692), (18, 4368910), (20, 3932019), (21, 3744780), (26, 3024630), (28, 2808585), (30, 2621346), (35, 2246868), (36, 2184455), (39, 2016420), (42, 1872390), (45, 1747564), (52, 1512315), (60, 1310673), (63, 1248260), (65, 1209852), (70, 1123434), (78, 1008210), (84, 936195), (90, 873782), (91, 864180), (105, 748956), (117, 672140), (126, 624130), (130, 604926), (140, 561717), (156, 504105), (180, 436891), (182, 432090), (195, 403284), (210, 374478), (234, 336070), (252, 312065), (260, 302463), (273, 288060), (315, 249652), (364, 216045), (390, 201642), (420, 187239), (455, 172836), (468, 168035), (546, 144030), (585, 134428), (630, 124826), (780, 100821), (819, 96020), (910, 86418), (1092, 72015), (1170, 67214), (1260, 62413), (1365, 57612), (1638, 48010), (1820, 43209), (2340, 33607), (2730, 28806), (3276, 24005), (4095, 19204), (4801, 16380), (5460, 14403), (8190, 9602)]