31101980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{743}}^1$

素因数の和:795

約数の個数: 96

約数和(自身を含む): 83994624

約数和(自身を除く): 52892644

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 23, 26, 28, 35, 46, 52, 65, 70, 91, 92, 115, 130, 140, 161, 182, 230, 260, 299, 322, 364, 455, 460, 598, 644, 743, 805, 910, 1196, 1486, 1495, 1610, 1820, 2093, 2972, 2990, 3220, 3715, 4186, 5201, 5980, 7430, 8372, 9659, 10402, 10465, 14860, 17089, 19318, 20804, 20930, 26005, 34178, 38636, 41860, 48295, 52010, 67613, 68356, 85445, 96590, 104020, 119623, 135226, 170890, 193180, 222157, 239246, 270452, 338065, 341780, 444314, 478492, 598115, 676130, 888628, 1110785, 1196230, 1352260, 1555099, 2221570, 2392460, 3110198, 4443140, 6220396, 7775495, 15550990, 31101980]

約数ペア:

[(1, 31101980), (2, 15550990), (4, 7775495), (5, 6220396), (7, 4443140), (10, 3110198), (13, 2392460), (14, 2221570), (20, 1555099), (23, 1352260), (26, 1196230), (28, 1110785), (35, 888628), (46, 676130), (52, 598115), (65, 478492), (70, 444314), (91, 341780), (92, 338065), (115, 270452), (130, 239246), (140, 222157), (161, 193180), (182, 170890), (230, 135226), (260, 119623), (299, 104020), (322, 96590), (364, 85445), (455, 68356), (460, 67613), (598, 52010), (644, 48295), (743, 41860), (805, 38636), (910, 34178), (1196, 26005), (1486, 20930), (1495, 20804), (1610, 19318), (1820, 17089), (2093, 14860), (2972, 10465), (2990, 10402), (3220, 9659), (3715, 8372), (4186, 7430), (5201, 5980)]