19741550

素因数分解:

$2^1\times 5^2\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:233

約数の個数: 48

約数和(自身を含む): 38247552

約数和(自身を除く): 18506002

約数列:

[1, 2, 5, 10, 25, 50, 67, 71, 83, 134, 142, 166, 335, 355, 415, 670, 710, 830, 1675, 1775, 2075, 3350, 3550, 4150, 4757, 5561, 5893, 9514, 11122, 11786, 23785, 27805, 29465, 47570, 55610, 58930, 118925, 139025, 147325, 237850, 278050, 294650, 394831, 789662, 1974155, 3948310, 9870775, 19741550]

約数ペア:

[(1, 19741550), (2, 9870775), (5, 3948310), (10, 1974155), (25, 789662), (50, 394831), (67, 294650), (71, 278050), (83, 237850), (134, 147325), (142, 139025), (166, 118925), (335, 58930), (355, 55610), (415, 47570), (670, 29465), (710, 27805), (830, 23785), (1675, 11786), (1775, 11122), (2075, 9514), (3350, 5893), (3550, 5561), (4150, 4757)]