81829020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{2141}}^1$

素因数の和:2180

約数の個数: 144

約数和(自身を含む): 287165088

約数和(自身を除く): 205336068

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 49, 52, 60, 65, 70, 78, 84, 91, 98, 105, 130, 140, 147, 156, 182, 195, 196, 210, 245, 260, 273, 294, 364, 390, 420, 455, 490, 546, 588, 637, 735, 780, 910, 980, 1092, 1274, 1365, 1470, 1820, 1911, 2141, 2548, 2730, 2940, 3185, 3822, 4282, 5460, 6370, 6423, 7644, 8564, 9555, 10705, 12740, 12846, 14987, 19110, 21410, 25692, 27833, 29974, 32115, 38220, 42820, 44961, 55666, 59948, 64230, 74935, 83499, 89922, 104909, 111332, 128460, 139165, 149870, 166998, 179844, 194831, 209818, 224805, 278330, 299740, 314727, 333996, 389662, 417495, 419636, 449610, 524545, 556660, 584493, 629454, 779324, 834990, 899220, 974155, 1049090, 1168986, 1258908, 1363817, 1573635, 1669980, 1948310, 2098180, 2337972, 2727634, 2922465, 3147270, 3896620, 4091451, 5455268, 5844930, 6294540, 6819085, 8182902, 11689860, 13638170, 16365804, 20457255, 27276340, 40914510, 81829020]

約数ペア:

[(1, 81829020), (2, 40914510), (3, 27276340), (4, 20457255), (5, 16365804), (6, 13638170), (7, 11689860), (10, 8182902), (12, 6819085), (13, 6294540), (14, 5844930), (15, 5455268), (20, 4091451), (21, 3896620), (26, 3147270), (28, 2922465), (30, 2727634), (35, 2337972), (39, 2098180), (42, 1948310), (49, 1669980), (52, 1573635), (60, 1363817), (65, 1258908), (70, 1168986), (78, 1049090), (84, 974155), (91, 899220), (98, 834990), (105, 779324), (130, 629454), (140, 584493), (147, 556660), (156, 524545), (182, 449610), (195, 419636), (196, 417495), (210, 389662), (245, 333996), (260, 314727), (273, 299740), (294, 278330), (364, 224805), (390, 209818), (420, 194831), (455, 179844), (490, 166998), (546, 149870), (588, 139165), (637, 128460), (735, 111332), (780, 104909), (910, 89922), (980, 83499), (1092, 74935), (1274, 64230), (1365, 59948), (1470, 55666), (1820, 44961), (1911, 42820), (2141, 38220), (2548, 32115), (2730, 29974), (2940, 27833), (3185, 25692), (3822, 21410), (4282, 19110), (5460, 14987), (6370, 12846), (6423, 12740), (7644, 10705), (8564, 9555)]