81905850

素因数分解:

$2^1\times 3^3\times 5^2\times {\mathrm{13}}^2\times {\mathrm{359}}^1$

素因数の和:406

約数の個数: 144

約数和(自身を含む): 245073600

約数和(自身を除く): 163167750

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 25, 26, 27, 30, 39, 45, 50, 54, 65, 75, 78, 90, 117, 130, 135, 150, 169, 195, 225, 234, 270, 325, 338, 351, 359, 390, 450, 507, 585, 650, 675, 702, 718, 845, 975, 1014, 1077, 1170, 1350, 1521, 1690, 1755, 1795, 1950, 2154, 2535, 2925, 3042, 3231, 3510, 3590, 4225, 4563, 4667, 5070, 5385, 5850, 6462, 7605, 8450, 8775, 8975, 9126, 9334, 9693, 10770, 12675, 14001, 15210, 16155, 17550, 17950, 19386, 22815, 23335, 25350, 26925, 28002, 32310, 38025, 42003, 45630, 46670, 48465, 53850, 60671, 70005, 76050, 80775, 84006, 96930, 114075, 116675, 121342, 126009, 140010, 161550, 182013, 210015, 228150, 233350, 242325, 252018, 303355, 350025, 364026, 420030, 484650, 546039, 606710, 630045, 700050, 910065, 1050075, 1092078, 1260090, 1516775, 1638117, 1820130, 2100150, 2730195, 3033550, 3150225, 3276234, 4550325, 5460390, 6300450, 8190585, 9100650, 13650975, 16381170, 27301950, 40952925, 81905850]

約数ペア:

[(1, 81905850), (2, 40952925), (3, 27301950), (5, 16381170), (6, 13650975), (9, 9100650), (10, 8190585), (13, 6300450), (15, 5460390), (18, 4550325), (25, 3276234), (26, 3150225), (27, 3033550), (30, 2730195), (39, 2100150), (45, 1820130), (50, 1638117), (54, 1516775), (65, 1260090), (75, 1092078), (78, 1050075), (90, 910065), (117, 700050), (130, 630045), (135, 606710), (150, 546039), (169, 484650), (195, 420030), (225, 364026), (234, 350025), (270, 303355), (325, 252018), (338, 242325), (351, 233350), (359, 228150), (390, 210015), (450, 182013), (507, 161550), (585, 140010), (650, 126009), (675, 121342), (702, 116675), (718, 114075), (845, 96930), (975, 84006), (1014, 80775), (1077, 76050), (1170, 70005), (1350, 60671), (1521, 53850), (1690, 48465), (1755, 46670), (1795, 45630), (1950, 42003), (2154, 38025), (2535, 32310), (2925, 28002), (3042, 26925), (3231, 25350), (3510, 23335), (3590, 22815), (4225, 19386), (4563, 17950), (4667, 17550), (5070, 16155), (5385, 15210), (5850, 14001), (6462, 12675), (7605, 10770), (8450, 9693), (8775, 9334), (8975, 9126)]