16800420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1$

素因数の和:230

約数の個数: 192

約数和(自身を含む): 61641216

約数和(自身を除く): 44840796

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 17, 20, 21, 26, 28, 30, 34, 35, 39, 42, 51, 52, 60, 65, 68, 70, 78, 84, 85, 91, 102, 105, 119, 130, 140, 156, 170, 181, 182, 195, 204, 210, 221, 238, 255, 260, 273, 340, 357, 362, 364, 390, 420, 442, 455, 476, 510, 543, 546, 595, 663, 714, 724, 780, 884, 905, 910, 1020, 1086, 1092, 1105, 1190, 1267, 1326, 1365, 1428, 1547, 1785, 1810, 1820, 2172, 2210, 2353, 2380, 2534, 2652, 2715, 2730, 3077, 3094, 3315, 3570, 3620, 3801, 4420, 4641, 4706, 5068, 5430, 5460, 6154, 6188, 6335, 6630, 7059, 7140, 7602, 7735, 9231, 9282, 9412, 10860, 11765, 12308, 12670, 13260, 14118, 15204, 15385, 15470, 16471, 18462, 18564, 19005, 21539, 23205, 23530, 25340, 28236, 30770, 30940, 32942, 35295, 36924, 38010, 40001, 43078, 46155, 46410, 47060, 49413, 61540, 64617, 65884, 70590, 76020, 80002, 82355, 86156, 92310, 92820, 98826, 107695, 120003, 129234, 141180, 160004, 164710, 184620, 197652, 200005, 215390, 240006, 247065, 258468, 280007, 323085, 329420, 400010, 430780, 480012, 494130, 560014, 600015, 646170, 800020, 840021, 988260, 1120028, 1200030, 1292340, 1400035, 1680042, 2400060, 2800070, 3360084, 4200105, 5600140, 8400210, 16800420]

約数ペア:

[(1, 16800420), (2, 8400210), (3, 5600140), (4, 4200105), (5, 3360084), (6, 2800070), (7, 2400060), (10, 1680042), (12, 1400035), (13, 1292340), (14, 1200030), (15, 1120028), (17, 988260), (20, 840021), (21, 800020), (26, 646170), (28, 600015), (30, 560014), (34, 494130), (35, 480012), (39, 430780), (42, 400010), (51, 329420), (52, 323085), (60, 280007), (65, 258468), (68, 247065), (70, 240006), (78, 215390), (84, 200005), (85, 197652), (91, 184620), (102, 164710), (105, 160004), (119, 141180), (130, 129234), (140, 120003), (156, 107695), (170, 98826), (181, 92820), (182, 92310), (195, 86156), (204, 82355), (210, 80002), (221, 76020), (238, 70590), (255, 65884), (260, 64617), (273, 61540), (340, 49413), (357, 47060), (362, 46410), (364, 46155), (390, 43078), (420, 40001), (442, 38010), (455, 36924), (476, 35295), (510, 32942), (543, 30940), (546, 30770), (595, 28236), (663, 25340), (714, 23530), (724, 23205), (780, 21539), (884, 19005), (905, 18564), (910, 18462), (1020, 16471), (1086, 15470), (1092, 15385), (1105, 15204), (1190, 14118), (1267, 13260), (1326, 12670), (1365, 12308), (1428, 11765), (1547, 10860), (1785, 9412), (1810, 9282), (1820, 9231), (2172, 7735), (2210, 7602), (2353, 7140), (2380, 7059), (2534, 6630), (2652, 6335), (2715, 6188), (2730, 6154), (3077, 5460), (3094, 5430), (3315, 5068), (3570, 4706), (3620, 4641), (3801, 4420)]